you look like an elf that just crawled out of the forest, broke into a cottage and started infodumping about animals to us for ten minutes and i love it
bonus fact: Latin has two words for left; laevus meaning left and clumsy as well as sinister meaning left and evil. Most chiral chemicals use laevus to denote left-handedness in the form of the prefix levo-. This isn't consistent through all of science where a lot of biological terms such as sinistromanual meaning left-handed use the prefix sinistro-. bonus bonus fact: Latin has only one word for right; dexter meaning right and skillful. Dextro- is a prefix derived from this and is used in one of my favourite pairs of words: dextrosinistral (meaning moving from right to left) and sinistrodextral (meaning moving from left to right). These words are commonly used to describe writing systems. Isn't language fun.
Viewing left-handedness suspiciously probably comes not from the hands, but the eyes. People have a tendency to direct their gaze in different specific directions dependent on what they're thinking (imagining an image, imagining a sound, remembering an image, etc), and the directions are flipped in the left-handed. While most people don't consciously know about this quirk, we can all intuitively notice if someone is looking in a weird direction when speaking, and for the left-handed, when they recall something visual they look in the direction most people look when making something up. Not a great recipe for trust.
L- and D-nomenclature for chiral chemicals isn't particularly useful for chemists, and is more often used in biological contexts simply due to the historical use of these labels persisting. L- for laevorotary and D- for dextrorotary, referring to how polarised light is rotated by the isomers. This system, however, doesn't describe the actual configuration in 3D space, so among chemists it is most common to refer to chiral molecules as R- or S-isomers which is a system which systematically describes the molecule's 3D structure. R- for rectus and S- for sinister, referring to the result of applying the Cahn-Ingold-Prelog naming rules. And yes language is fun! It helps when teaching science to be able to break down what complex technical words actually mean. Here's a question I don't know the answer to: What are the linguistic origins of laevus/sinister/dexter/rectus? They're all Latin, right? Two lefts and two rights? I know the chemical difference between their uses, but what's the difference between them in terms of linguistics?
@@sam_c95 "rectus" comes from the Latin "rectus" meaning straight or upright and also righteous. Interestingly it comes from the same Proto-Indo-European root as "right" as in on the right-hand side; though "rectus" comes through Greek instead of Proto-Germanic for "right". "dexter" comes from Latin through PIE, "sinister" and "laevus" come from Latin although more than that is not known, they do both have cognates in Greek though. Antother vaguely adjacent fact: "Austria" comes from Old High German "Ostarrihhi" stemming from Proto-Germanic "austraz" meaning eastern and "rihhi" meaning realm. "austraz" comes from PIE "*h₂éwsteros" meaning in the direction of dawn. "Australia" comes from Latin "australis" meaning south itself coming from Latin "auster" meaning southern wind. Now it gets a bit iffy because the research suggests that "auster" also comes from "*h₂éwsteros". I did spend a bit of time trying to figure out why this is but beyond a paper saying "it may still be a cognate" (De Vaan, Michiel 2008 page 64) there is nothing else on it in English and available for free.
"...that's why we don't have asymmetrical aircraft or cars." My mind went immediately to Blohm & Voss and their crazy projects. But there's more: A motorcycle with a side car is definitely asymmetrical, and it behaves differently in turns (ask Isle of Man TT racers). Italian WWII fighter plane Macchi MC.200 and derivatives had a 20cm longer left wing, to counteract the asymmetrical thrust of the propeller (other aircraft just had pilots to counteract with controls, because the asymmetrical wing had some stall weaknesses).
Also all road cars are internally assymetrical , given there is a driver side and a passanger side ... F1 cars and dragsters instead are symmetrical cars
they arent aircraft or cars, but there are several varieties of outrigger boats that are asymmetrical. The sailing ones are especially strange since the outrigger needs to always needs to be on the downwind side of the craft to stabilize it, so they're double ended, and they move the mast, sail and steering apparatus to change which end is the front.
There’s a mission in Hitman where a guy with Situs Invertus needs a rare inverted heart and has betrayed the organization to get it. I always assumed they made that condition up.
@@Giguv05heartbeats can be felt across your entire body, and the heart is, all things considered, barely off-center. this hypothetical would not happen.
The legs of the Wild Haggis (Haggis scoticus) are shorter on one side, allowing them to rapidly traverse steep mountainsides while staying upright. There are two morphs: right legs longer than left, and left legs longer than right. Only morphs of the same type can mate-otherwise they topple off the mountain-and offspring are always the opposite morph to promote colonization & prevent inbreeding.
@@Ribulose15diphosphat In the Swiss Alps, it is said about men. This is why tailors ask "Do you dress to the left or right?" when fitting men's trousers.
6:25 The fiddler crab/Möbius strip GIF is somewhat undercut by the fact that the crab never gets to the other side-only half the animation is present! A travesty!
She shows a full loop of the animation! It never gets "to the other side" because this möbius strip is a transparent wireframe. But you can see the crab change directions twice.
Just for the record since a lot of people probably don't know what a "cavitation bubble" is: what the shrimps do is move their claw so fast in the water that it creates a huge pressure difference. In some areas the pressure gets super low, which lowers the boiling point of the water so far that it vaporizes and creates a bubble of steam. That bubble then collapses again moments later, which creates the shockwave. Pretty crazy stuff.
I like the theory that Marlin never became a female because he never accepted Corals death… he was never ready to move on, or continue living. He was basically stuck since that day and has treated Nemo like a helpless baby and refuses to acknowledge or accept that he’s growing up. Perhaps after the movies he will eventually move on, become a new female and proper mom to Nemo as he grows up. I dunno. It’s just a theory that I like. It’s realistic that after a tragedy some people put their lives on hold and don’t ever unpause… they just stay in that state until something or someone helps to pull them out of it.
0:02 Took a minute but I actually remembered some! 1. Shelled snails, the protected part is spiral shaped 2. Lobsters, some have a single crusher claw. 3. Narwhals! The tusk is of-center
I guess in mentioning asymmetrical aircraft, there are other examples but they're not as obvious. British aircraft in the 50s and 60s had asymmetry in cockpit placement (most obvious in the Sea Vixen) and, the most interesting in my eyes, Italian aircraft in WW2 had asymmetric wings. One wing is slightly longer than the other and that's meant to offset the turning moment caused by the propeller and make flight easier.
You could count humans having a dominant hand as asymmetry, as the right arm of a righthanded adult is slightly more developed than the left. Thanks for all your work, I love this type of video!
Physics also has asymmetry! Spontaneous Symmetry Breaking! I have no idea how that works except that's how the higgs boson came to be or something like that. I think spontaneous symmetry breaking is also a thing in statistical mechanics
There are common aircrafts that are asymmetrical: most helicopters. The tail has a secondary rotor to counteract the torque of the main rotor. It technically can be made symmetrical and integrated into the tail (called a Fenestron), but commonly aerospace engineers decide to mount it to one side in either a push or pull system. Generally, the Fenestron comes at a weight cost, which can either be a good thing or bad depending on the helicopter being designed. There's also other ways to solve the torque problem using the Coandă effect or having multiple main rotors which spin in opposite way and counter act each others torque but still push thrust down.
I just found your channel and have now watched every video. I am extremely impressed. I love your cadence! This video is unlisted, but linked in the end screen of your smell video. I assume this was intentional?
This and the witches one were my first videos and looking back I'm kind of embarrassed about the quality and the editing. I unlisted them so they aren't recommended to folks as a first impression of my channel
As someone who has been to New Zealand, I very highly recommend it. There are so many cool and unique things geographically and biologically there because of its "youth" as a landmass and "remoteness" from everywhere else
I could only think of crossbills, gastropods, flatfish, and narwhals. While you were talking about the snail-eating snake though, I did remember that ducks have corkscrew-shaped reproductive anatomy, and females have spirals that are opposite to the males. Apparently this makes it harder for females to be involuntarily fertilized (which ducks have a proclivity for). There are also extinct examples: Tsaidamotherium is an extinct bovid whose one horn was just a big, dome-shaped boss, while the other was a tiny little nub at the edge of it. Odobenocetops was a walrus-looking whale with one tooth being much bigger than the other. I'm sure there are other extinct examples. Lokiceratops was described recently, but it is debated how asymmetric its frill really was. The holotype specimen is very asymmetric, but might not be representative of the real animal. Most reconstructions are a tad asymmetric.
Mine was narwhal, flounder and aardvarks. Aardvarks have asymmetric toe numbers from front to back. Wasn't sure if that truly counted, but I do think it's a very rare mutation.
"Tusk anomalies in narwhals (Monodon monoceros) from Greenland" by Eva Garde and Mads Peter Heide-Jørgensen (published in 2022) mentions in the abstract that the tusk is most likely used in male-to-male hierarchical competitions. Additionally, "The longer the better: evidence that narwhal tusks are sexually selected" by Zackary A. Graham et al. (published in 2020) makes similar claims about the tusk being used for male competitions, but the authors do not disregard other possible uses for the tusks. The 2014 article that suggested males rubbed tusks as a way of exchanging information was the only paper I could find that strongly supported the information exchange theory. Other papers only mentioned the information exchange theory as being a possibility but were more likely to support the male hierarchical competition theory.
I'm sure they are transferring information, but unsure of what information, and I have no evidence. However, competition is an exchange of information. Consider rams butting heads; They are teaching each other a lesson. Anyways, the horn is connected to the rest of the narwal and transmits vibrations, so the next logical step is brain monitoring. After collecting more narwals.
And of course there are the two species of Haggis - which have longer legs on one side than the other, to facilitate movement around the steep slopes of the Scottish Highlands. Since the two species have their longer legs on opposite sides, hybridisation is almost unknown... 😉
I have a couple more examples Ephemeroptera larva have asymetrical maxillary. There are two species that differ by being left or right maxillary being the biggest. Syrphids have twisted and assymetrical genitals
I feel the need to point out that, combined with the very good, yes those adjectives are a choice, I made it, Infos you look awfully friendly thank you this has been my TED
I would love to see a video on owls. Honestly, I wish I'd gone into ecology rather than medical biology. Love your vids, keep it up queen, all the best
I heard somewhere mothers look into the left eyes of their babies more because of the position they hold them in most often when feeding and it creates empathy or something like that and this is how we can more easily build empathy with other people by looking into their left eye when interacting. Maybe this has something to do with our faces being offset to the left and maybe why it’s more noticeable when we’re babies.
Most single engine prop planes have a slight offset in their tail to handle the torque of the engine. Also most tanks have their cannon slightly offset for the loader
2:50 I do wonder though, big cats and most dogs are streamlined for moving in one direction, especially the latter. They move along one plain for the most part, with only mild jumping & climbing & they can be super fast running forward along the axis of their spine. But then you get primates like gibbons and humans, as well as housecats, who can move through space much more intricately and in 3 dimensions. Gibbons & humans brachiate perpendicular to their spines, humans run this direction too (though the angle isn't 90°). And humans and cats can flip around their center of gravity. Humans can handstand and some humans can still use their feet in place of hands. Importantly, humans and cats can use their forelimbs much more like hands than dogs can. Are apes actually somewhere between bilateral and radial symmetry then? I'm sure nobody was perfect, but it's a thought. Interestingly, this doesn't impede our endurance & we're still pretty fast.
The thrip thing is interesting, it's not classified as a Hemipteran (a large order of insects with a single, stabbing proboscis for a mouth), but they are hypothesized to be closely related. Perhaps they're on the evolutionary path to losing their vestigial mandible and developing a truly Hemipteran-style mouthpart?
Since you mentioned several asymmetry that aren't externally visible, you should've mentioned that internal organs are highly asymmetrical. I only know about internal organs of human, but seeing the degree of asymmetry in things like our heart, liver, and gastrointestinal system, i think it's safe to guess that at least most mammals also have asymmetrical organs.
Very interesting to have so many people in the comments repeating pseudo-psych theories about "the direction to look in to be trustworthy" and other variants of that idea. None of your other videos' comments are like that, really.
Another video where I'm still left not understanding the asymmetry of that garment or what that garment even is. It's an evil plot cuz it keeps me coming back, hoping to find out.
Are there several of your videos that are unlisted? There seems to be one that is referenced in your outtro of the witches video that i can't find. Also, this video and the witch video are unlisted and I only found them because of end card links in other videos. Just a heads up in case they aren't supposed to be unlisted, or the remaining links to them are unintentional. Anyway, all the videos were great, loved all the animal ones especially! I second the recent comment still awaiting the owl video!
Mentioned in another comment, but this and the witches ones were my first videos and looking back I'm kind of embarrassed about the quality and the editing. I unlisted them so they aren't recommended to folks as a first impression of my channel, but I'll probably re-list them when I have more videos so they are less likely to be recommended
@@HGModernismoh, I see, well for whatever my opinion is worth, I actually really like the longer intro and I'm super glad I watched the videos in reverse chronological order (except narwhals which was the video the algorithm recommended first and then asymmetry and witches were out of order due to linking). It kind of felt like a crescendo rather than a diminuendo (with a, somehow, half-hour long baroque piano solo in the middle), from several short, mostly singular videos to these more broad spanning and a bit longer videos. I get it though, it's hard not to be your own biggest critic, but they are wonderful videos and they are lovely. I personally am here for every 2 hour Sarah Z video, 4 hour Folding Ideas video, and whatever insanity HBomb is doing. So, I'll happily take an 11 minute HGModernism video in addition to the 6s and 5s :)
9:31 Are owls really an example of external assymetry? If we believe it is rare due to mate selection then doesn't the fact that you can't see the ears of an owl due to the feathering effectively make them internally assymetric?
All I could think during the video is why the Elf Lady maked me kind of nervous - it‘s not the intonation which us like 15% too fast. Nor the fact she‘s blinking like NOT enough at all. No way more it is thebfact that she looks just a BIT too far to the side of the lens! Like a person avoiding Eye contact and focus on some part of your body JUST a bit beyond or above your Eyes so you can‘t help to think you must‘ve something on there like a Pimple or so
@@HGModernism hehe don't take my comment too seriously please! These small mistakes are too common and it's not really that bad. i just wanted to join the running Gags of the comment section ;) You're doing a terrific job! Just keep at it!
@@frybodelgado1482 Haha sorry I realized the ellipses could come across upset if you don't know me! Nah it was just super embarrassing when I realized it editing but I had already had to record three times. The first time I used my phone to record but it overheated and cracked and died. The second time a fan was severely messing with the audio. This third I was looking like an idiot into the my new camera screen instead of the lens, I just couldn't bring myself to record again haha.
I always found it strange how the blow hole of a sperm whale wasn't central, this was a good video, I shall have to watch more videos on this channel.. Edit: there are no other videos
All animals display external asymmetry. Perfect symmetry is nearly impossible to engineer or construct. Unless you are using some weird, boutique definition of symmetry, there are no symmetrical animals.
Blink twice if you're being held captive by Wikipedia
did you know that when you blink, each eye winks slightly out of sync?
@@existereOracleKind of obvious, but I'm sure most won't think of it.
@@existereOraclewrong
@@existereOracle Asymmetrical blinkings are surprisingly uncommon
If HG Modernism her self narrates it I'll watch it forever
you look like an elf that just crawled out of the forest, broke into a cottage and started infodumping about animals to us for ten minutes and i love it
I think you meant introverted helf that really loves animals but yes, potato tomato
A sexy elf at that
I just burst out laughing at the mobius strip animation. Never change, Wikipedia.
Mobius crab.
bonus fact: Latin has two words for left; laevus meaning left and clumsy as well as sinister meaning left and evil. Most chiral chemicals use laevus to denote left-handedness in the form of the prefix levo-. This isn't consistent through all of science where a lot of biological terms such as sinistromanual meaning left-handed use the prefix sinistro-.
bonus bonus fact: Latin has only one word for right; dexter meaning right and skillful. Dextro- is a prefix derived from this and is used in one of my favourite pairs of words: dextrosinistral (meaning moving from right to left) and sinistrodextral (meaning moving from left to right). These words are commonly used to describe writing systems.
Isn't language fun.
Thank you, I studied Latin for several years and never was told about Laevus.
Viewing left-handedness suspiciously probably comes not from the hands, but the eyes. People have a tendency to direct their gaze in different specific directions dependent on what they're thinking (imagining an image, imagining a sound, remembering an image, etc), and the directions are flipped in the left-handed. While most people don't consciously know about this quirk, we can all intuitively notice if someone is looking in a weird direction when speaking, and for the left-handed, when they recall something visual they look in the direction most people look when making something up.
Not a great recipe for trust.
L- and D-nomenclature for chiral chemicals isn't particularly useful for chemists, and is more often used in biological contexts simply due to the historical use of these labels persisting. L- for laevorotary and D- for dextrorotary, referring to how polarised light is rotated by the isomers.
This system, however, doesn't describe the actual configuration in 3D space, so among chemists it is most common to refer to chiral molecules as R- or S-isomers which is a system which systematically describes the molecule's 3D structure. R- for rectus and S- for sinister, referring to the result of applying the Cahn-Ingold-Prelog naming rules.
And yes language is fun! It helps when teaching science to be able to break down what complex technical words actually mean.
Here's a question I don't know the answer to: What are the linguistic origins of laevus/sinister/dexter/rectus? They're all Latin, right? Two lefts and two rights? I know the chemical difference between their uses, but what's the difference between them in terms of linguistics?
@@sam_c95 "rectus" comes from the Latin "rectus" meaning straight or upright and also righteous. Interestingly it comes from the same Proto-Indo-European root as "right" as in on the right-hand side; though "rectus" comes through Greek instead of Proto-Germanic for "right". "dexter" comes from Latin through PIE, "sinister" and "laevus" come from Latin although more than that is not known, they do both have cognates in Greek though.
Antother vaguely adjacent fact: "Austria" comes from Old High German "Ostarrihhi" stemming from Proto-Germanic "austraz" meaning eastern and "rihhi" meaning realm. "austraz" comes from PIE "*h₂éwsteros" meaning in the direction of dawn. "Australia" comes from Latin "australis" meaning south itself coming from Latin "auster" meaning southern wind. Now it gets a bit iffy because the research suggests that "auster" also comes from "*h₂éwsteros". I did spend a bit of time trying to figure out why this is but beyond a paper saying "it may still be a cognate" (De Vaan, Michiel 2008 page 64) there is nothing else on it in English and available for free.
"...that's why we don't have asymmetrical aircraft or cars."
My mind went immediately to Blohm & Voss and their crazy projects. But there's more: A motorcycle with a side car is definitely asymmetrical, and it behaves differently in turns (ask Isle of Man TT racers). Italian WWII fighter plane Macchi MC.200 and derivatives had a 20cm longer left wing, to counteract the asymmetrical thrust of the propeller (other aircraft just had pilots to counteract with controls, because the asymmetrical wing had some stall weaknesses).
A lot of prop planes have a vertical stabilizer with a slight angle to one side to counteract the torque of the prop/engine.
Also all road cars are internally assymetrical , given there is a driver side and a passanger side ...
F1 cars and dragsters instead are symmetrical cars
@@davidegaruti2582 That's a packaging thing. One driver, one liver. I understod that the focus were the elements influencing motion of a given object.
I thought of motorcycles as well, but they aren't cars.
they arent aircraft or cars, but there are several varieties of outrigger boats that are asymmetrical. The sailing ones are especially strange since the outrigger needs to always needs to be on the downwind side of the craft to stabilize it, so they're double ended, and they move the mast, sail and steering apparatus to change which end is the front.
There’s a mission in Hitman where a guy with Situs Invertus needs a rare inverted heart and has betrayed the organization to get it. I always assumed they made that condition up.
I just like the idea that ANYONE could have it and realistically not know unless they had some procedure.
Same, but also wouldn't most people notice their heartbeat can't be felt on their left side, but can on their right at some point in their lives?
My school friend's dad had this. He found out in the army since he got malaria in the Pacific
I'm pretty sure he could just use a normal heart. Just rotate it 180°
@@Giguv05heartbeats can be felt across your entire body, and the heart is, all things considered, barely off-center. this hypothetical would not happen.
I love how you already assume people have read the title and have seen the thumbnail and waste no time with a 30 second long intro
Very pleasing to the brain
The legs of the Wild Haggis (Haggis scoticus) are shorter on one side, allowing them to rapidly traverse steep mountainsides while staying upright.
There are two morphs: right legs longer than left, and left legs longer than right. Only morphs of the same type can mate-otherwise they topple off the mountain-and offspring are always the opposite morph to promote colonization & prevent inbreeding.
Wait this exists ? In Bavaria this is said about Goats, but as a Joke.
@@Ribulose15diphosphat In the Swiss Alps, it is said about men. This is why tailors ask "Do you dress to the left or right?" when fitting men's trousers.
6:25 The fiddler crab/Möbius strip GIF is somewhat undercut by the fact that the crab never gets to the other side-only half the animation is present! A travesty!
"other side"? 🧐🔍
She shows a full loop of the animation! It never gets "to the other side" because this möbius strip is a transparent wireframe. But you can see the crab change directions twice.
most airplanes are very slightly asymmetrical to eliminate natural frequencies that might tear the plane apart during flight
Super interesting wtf
wait how does that work?
Just for the record since a lot of people probably don't know what a "cavitation bubble" is: what the shrimps do is move their claw so fast in the water that it creates a huge pressure difference. In some areas the pressure gets super low, which lowers the boiling point of the water so far that it vaporizes and creates a bubble of steam. That bubble then collapses again moments later, which creates the shockwave. Pretty crazy stuff.
Thanks for explaining! I'm one of the people that didn't know this before
To answer the begining question: cross beaks (start symetrical), flatfish (start symetrical), sponge and snails (start symetrical)
Now I have to go find the crab mobius strip gif for my collection
There was also that cardinal they photographed in Pennsylvania with bilateral gyndromorphism. It was half red and half white!
I like the theory that Marlin never became a female because he never accepted Corals death… he was never ready to move on, or continue living. He was basically stuck since that day and has treated Nemo like a helpless baby and refuses to acknowledge or accept that he’s growing up.
Perhaps after the movies he will eventually move on, become a new female and proper mom to Nemo as he grows up. I dunno.
It’s just a theory that I like. It’s realistic that after a tragedy some people put their lives on hold and don’t ever unpause… they just stay in that state until something or someone helps to pull them out of it.
Damn... I need to rewatch Finding Nemo as an adult. As a kid I thought Marlin was annoying and preferred Dory... somehow?
0:02 Took a minute but I actually remembered some!
1. Shelled snails, the protected part is spiral shaped
2. Lobsters, some have a single crusher claw.
3. Narwhals! The tusk is of-center
By that logic, any person with a snaggle-tooth
@@orterves I mean, if the snaggletooth is 3ft long, spiraled, and juts out straight from the jaw.... Yes?
@iriswaters hot
@@ortervesyeah but every narwhal is like that
I thought of snails and lobsters. Also flounder. The sea yearns for asymmetry.
I guess in mentioning asymmetrical aircraft, there are other examples but they're not as obvious. British aircraft in the 50s and 60s had asymmetry in cockpit placement (most obvious in the Sea Vixen) and, the most interesting in my eyes, Italian aircraft in WW2 had asymmetric wings. One wing is slightly longer than the other and that's meant to offset the turning moment caused by the propeller and make flight easier.
9:40 please make the owl facts video, im sure it would be awesome.
Also, great channel!
8:55 Florida fact. Limpkins also have a beak that is curved to one side. It's not as noticeable as the wrybill though.
You could count humans having a dominant hand as asymmetry, as the right arm of a righthanded adult is slightly more developed than the left. Thanks for all your work, I love this type of video!
Today I learned that fiddler crabs have one large claw so they can navigate mobius strips. Knowledge aquired. 🦀 🧠 💥
4:30 I love that the military has trouble with their sonar due to incessant shrimp gunfire.
"Doggy DnD: Diarrhea N' Dehydration" got me chuckling so hard
Love that Dark Souls 1 map rendition back there.
I would assume the whale asymmetry in coloration is so they can look down by tilting without losing the benefits of countershading
You definitely fell down many rabbit holes researching for this video, haha
Physics also has asymmetry! Spontaneous Symmetry Breaking! I have no idea how that works except that's how the higgs boson came to be or something like that. I think spontaneous symmetry breaking is also a thing in statistical mechanics
There are common aircrafts that are asymmetrical: most helicopters. The tail has a secondary rotor to counteract the torque of the main rotor. It technically can be made symmetrical and integrated into the tail (called a Fenestron), but commonly aerospace engineers decide to mount it to one side in either a push or pull system. Generally, the Fenestron comes at a weight cost, which can either be a good thing or bad depending on the helicopter being designed.
There's also other ways to solve the torque problem using the Coandă effect or having multiple main rotors which spin in opposite way and counter act each others torque but still push thrust down.
>spaceship graveyard
yo holdup
3:27 There's another one called Rutan Boomerang which is pretty famous and I'm pretty sure there are more examples.
The crab at ~5:50 has a purple manta ray with a black head on its shell. I guess the rays were a sports team and the crab was a fan?
I just found your channel and have now watched every video. I am extremely impressed. I love your cadence! This video is unlisted, but linked in the end screen of your smell video. I assume this was intentional?
This and the witches one were my first videos and looking back I'm kind of embarrassed about the quality and the editing. I unlisted them so they aren't recommended to folks as a first impression of my channel
@@HGModernismwelp, the witches one you published (and it's a banger) ! Maybe consider reviving also the other one? Pretty pls?
@@piripiro I have too many new videos I want to make! This one will stand unaltered as a awkward reminder of my progress 😬
@@HGModernism hello :) this was recommended to me as a first impression of your channel
Me too.
As someone who has been to New Zealand, I very highly recommend it. There are so many cool and unique things geographically and biologically there because of its "youth" as a landmass and "remoteness" from everywhere else
6:35 omg i remember seeing that animation on the mobius strip page and wondering why the hell they used a crab!!
Instantly subbed, great video! Informative and fun, hope there’s more to come
I could only think of crossbills, gastropods, flatfish, and narwhals. While you were talking about the snail-eating snake though, I did remember that ducks have corkscrew-shaped reproductive anatomy, and females have spirals that are opposite to the males. Apparently this makes it harder for females to be involuntarily fertilized (which ducks have a proclivity for).
There are also extinct examples: Tsaidamotherium is an extinct bovid whose one horn was just a big, dome-shaped boss, while the other was a tiny little nub at the edge of it. Odobenocetops was a walrus-looking whale with one tooth being much bigger than the other. I'm sure there are other extinct examples.
Lokiceratops was described recently, but it is debated how asymmetric its frill really was. The holotype specimen is very asymmetric, but might not be representative of the real animal. Most reconstructions are a tad asymmetric.
why unlisted?
feels like a found a secret video
Mine was narwhal, flounder and aardvarks. Aardvarks have asymmetric toe numbers from front to back. Wasn't sure if that truly counted, but I do think it's a very rare mutation.
She doesn't know about Burt Rutan aircrafts...
its so fun to watch these videos of yours!!
Mythical algorithm pull.
"Tusk anomalies in narwhals (Monodon monoceros) from Greenland" by Eva Garde and Mads Peter Heide-Jørgensen (published in 2022) mentions in the abstract that the tusk is most likely used in male-to-male hierarchical competitions. Additionally, "The longer the better: evidence that narwhal tusks are sexually selected" by Zackary A. Graham et al. (published in 2020) makes similar claims about the tusk being used for male competitions, but the authors do not disregard other possible uses for the tusks. The 2014 article that suggested males rubbed tusks as a way of exchanging information was the only paper I could find that strongly supported the information exchange theory. Other papers only mentioned the information exchange theory as being a possibility but were more likely to support the male hierarchical competition theory.
I'm sure they are transferring information, but unsure of what information, and I have no evidence. However, competition is an exchange of information. Consider rams butting heads; They are teaching each other a lesson. Anyways, the horn is connected to the rest of the narwal and transmits vibrations, so the next logical step is brain monitoring. After collecting more narwals.
I've always wondered if I've known or met somebody with situs inversus. It's like an invisible unicorn. I might have met one but I'll never know...
for the question at the beginning
caribou, snails, and lokiceratops
that took me a while lol
Another example of positive frequency dependent selection: snail twist handedness
Love how you just switch from biology to a Blohm & Voss plane
And of course there are the two species of Haggis - which have longer legs on one side than the other, to facilitate movement around the steep slopes of the Scottish Highlands. Since the two species have their longer legs on opposite sides, hybridisation is almost unknown... 😉
A modern example of an asymmetric aircraft is the Rutan Model 202 Boomerang. It's fascinating; check it out!
I have a couple more examples
Ephemeroptera larva have asymetrical maxillary. There are two species that differ by being left or right maxillary being the biggest.
Syrphids have twisted and assymetrical genitals
I feel the need to point out that, combined with the very good, yes those adjectives are a choice, I made it, Infos
you look awfully friendly
thank you this has been my TED
I would love to see a video on owls. Honestly, I wish I'd gone into ecology rather than medical biology. Love your vids, keep it up queen, all the best
Initial observation: "Symmetrical."
Upon closer inspection: "Asymmetrical."
I heard somewhere mothers look into the left eyes of their babies more because of the position they hold them in most often when feeding and it creates empathy or something like that and this is how we can more easily build empathy with other people by looking into their left eye when interacting. Maybe this has something to do with our faces being offset to the left and maybe why it’s more noticeable when we’re babies.
Yoooooo. You got a print of Laudate Solis too? Dope.
Algo blessed me with this video. Also please do a video on owls.
Most single engine prop planes have a slight offset in their tail to handle the torque of the engine. Also most tanks have their cannon slightly offset for the loader
My favourite asymmetrical animals are definitely the weird early echinoderm groups like the stylophorans and cinctans.
Damn, I was insecure that my face was a bit bigger on the left. Nver realized everyone had it!
uhhhh three outwardly asymmetrical animals: garden snails, crossbill birds, and odobenocetops the extinct tusked whale
Any chance you played Jurassic park builder?
@randomuser5443 no I haven't, why?
Almost exclusively insects i can think of. Before watching i have no idea how a barn owl is asym that alone is wild
That was such a fun video!
Fascinating topic!
Speaking of cars and aircraft, the M1 Abrams is also quite asymmetrical :-)
2:50 I do wonder though, big cats and most dogs are streamlined for moving in one direction, especially the latter. They move along one plain for the most part, with only mild jumping & climbing & they can be super fast running forward along the axis of their spine.
But then you get primates like gibbons and humans, as well as housecats, who can move through space much more intricately and in 3 dimensions. Gibbons & humans brachiate perpendicular to their spines, humans run this direction too (though the angle isn't 90°). And humans and cats can flip around their center of gravity.
Humans can handstand and some humans can still use their feet in place of hands.
Importantly, humans and cats can use their forelimbs much more like hands than dogs can.
Are apes actually somewhere between bilateral and radial symmetry then?
I'm sure nobody was perfect, but it's a thought.
Interestingly, this doesn't impede our endurance & we're still pretty fast.
Is that a Dark Souls I map in the background??
The thrip thing is interesting, it's not classified as a Hemipteran (a large order of insects with a single, stabbing proboscis for a mouth), but they are hypothesized to be closely related. Perhaps they're on the evolutionary path to losing their vestigial mandible and developing a truly Hemipteran-style mouthpart?
Since you mentioned several asymmetry that aren't externally visible, you should've mentioned that internal organs are highly asymmetrical. I only know about internal organs of human, but seeing the degree of asymmetry in things like our heart, liver, and gastrointestinal system, i think it's safe to guess that at least most mammals also have asymmetrical organs.
Hey just so you know when you said 'honey badgers' you used an image of a european badger by mistake
Very interesting to have so many people in the comments repeating pseudo-psych theories about "the direction to look in to be trustworthy" and other variants of that idea. None of your other videos' comments are like that, really.
Another video where I'm still left not understanding the asymmetry of that garment or what that garment even is. It's an evil plot cuz it keeps me coming back, hoping to find out.
Time to begin watch/listen
Is Hagrid's motorcycle classified as an aircraft?
Are you wearing an apron? Why?
I had sponges, squid, and flounder!
I will be the first spherically symmetric vertebrate. Hershey's Peanut Butter Cups please sponsor me.
Flounders has to be the kings of asymmetry.
Come figure out for yourself, there are heaps of those in NZ
Are there several of your videos that are unlisted?
There seems to be one that is referenced in your outtro of the witches video that i can't find.
Also, this video and the witch video are unlisted and I only found them because of end card links in other videos.
Just a heads up in case they aren't supposed to be unlisted, or the remaining links to them are unintentional.
Anyway, all the videos were great, loved all the animal ones especially! I second the recent comment still awaiting the owl video!
Mentioned in another comment, but this and the witches ones were my first videos and looking back I'm kind of embarrassed about the quality and the editing. I unlisted them so they aren't recommended to folks as a first impression of my channel, but I'll probably re-list them when I have more videos so they are less likely to be recommended
@@HGModernismoh, I see, well for whatever my opinion is worth, I actually really like the longer intro and I'm super glad I watched the videos in reverse chronological order (except narwhals which was the video the algorithm recommended first and then asymmetry and witches were out of order due to linking). It kind of felt like a crescendo rather than a diminuendo (with a, somehow, half-hour long baroque piano solo in the middle), from several short, mostly singular videos to these more broad spanning and a bit longer videos.
I get it though, it's hard not to be your own biggest critic, but they are wonderful videos and they are lovely. I personally am here for every 2 hour Sarah Z video, 4 hour Folding Ideas video, and whatever insanity HBomb is doing.
So, I'll happily take an 11 minute HGModernism video in addition to the 6s and 5s :)
me, looking at the picture of the owl and nodding so no-one knows i can't see where the ears are
OWLS!
I wish I had more to add, but....nah, that's it.
There are deep-sea anglerfish called Leftvents whose anuses are offset to the left side of their body.
I intentionally made my sona's eyes lopsided to make it cuter :D
Hey, calling my face uncomon is one of the nicer things anyone's ever said about it
Good vid. Could easierly be lengthier, enjoyed a lot. Get a quality mic to suit your quality research.
Is that the vertical dark souls map in the background?
9:31 Are owls really an example of external assymetry? If we believe it is rare due to mate selection then doesn't the fact that you can't see the ears of an owl due to the feathering effectively make them internally assymetric?
Unexpected little bear
Yes come to nz
Many excellent birbs and birb places and ppl who like them ☺️
All I could think during the video is why the Elf Lady maked me kind of nervous - it‘s not the intonation which us like 15% too fast. Nor the fact she‘s blinking like NOT enough at all.
No way more it is thebfact that she looks just a BIT too far to the side of the lens! Like a person avoiding Eye contact and focus on some part of your body JUST a bit beyond or above your Eyes so you can‘t help to think you must‘ve something on there like a Pimple or so
This was my very first video and I was looking at the camera screen instead of the lens... I didn't realize till editing anyone could tell......
@@HGModernism hehe don't take my comment too seriously please! These small mistakes are too common and it's not really that bad. i just wanted to join the running Gags of the comment section ;)
You're doing a terrific job! Just keep at it!
@@frybodelgado1482 Haha sorry I realized the ellipses could come across upset if you don't know me! Nah it was just super embarrassing when I realized it editing but I had already had to record three times. The first time I used my phone to record but it overheated and cracked and died. The second time a fan was severely messing with the audio. This third I was looking like an idiot into the my new camera screen instead of the lens, I just couldn't bring myself to record again haha.
Did you just unlist your older videos :( ? I just found your channel, amazing content 👍
I'm pretty sure sponges and corals are made up of lots of tiny animals and those animals are symmetrical. I could be wrong though.
I always found it strange how the blow hole of a sperm whale wasn't central, this was a good video, I shall have to watch more videos on this channel..
Edit: there are no other videos
Just added a new one!
Never heard of wrybills before
Do flounders count?
hello. i'm ur new subscriber. thx for subtitle cuz i'm deaf.
I just found an old picture and my face was so funny as a baby
I clicked on this video expecting a quest.
All animals display external asymmetry. Perfect symmetry is nearly impossible to engineer or construct. Unless you are using some weird, boutique definition of symmetry, there are no symmetrical animals.
Bait used to be believable
Another one, earwigs and their usually asymmetrical pincees on their tail end.
Snails and their snail-eating counterparts have assymetry. Also i think flatfish are asymmetrical?