The Strange Evolutionary Story of the Thylacine
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- Опубліковано 4 чер 2018
- Special thanks to Vanessa from BrainCraft for help with this video!
Check out her channel: / braincraft
↓↓↓ More info and sources below ↓↓↓
Until the early 20th century, Tasmania was home to a very weird wolf-like creature. Except that it wasn’t a wolf. Even though it looked like a wolf. How did that happen? Here’s the science of convergent evolution!
Want to see more of my interview with Rob? Click here: • Footnote †: Extended T...
Special thanks to:
Rob Voss - American Museum of Natural History, New York City
Vanessa Hill from BrainCraft!
References:
Quammen, D. (2012). The song of the dodo: island biogeography in an age of extinctions. Random House.
Feigin, C. Y., Newton, A. H., Doronina, L., Schmitz, J., Hipsley, C. A., Mitchell, K. J., ... & Menzies, B. R. (2018). Genome of the Tasmanian tiger provides insights into the evolution and demography of an extinct marsupial carnivore. Nature ecology & evolution, 2(1), 182.
Newton, A. H., Spoutil, F., Prochazka, J., Black, J. R., Medlock, K., Paddle, R. N., ... & Pask, A. J. (2018). Letting the ‘cat’out of the bag: pouch young development of the extinct Tasmanian tiger revealed by X-ray computed tomography. Royal Society open science, 5(2), 171914.
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Vanessa from BrainCraft told me about a wolf with a pouch, so I had to go find one for myself. Unfortunately they’re extinct, which is how I ended up at the museum.
It's Okay To Be Smart the thylacine.. a sad story indeed. I drew it but it was hard, with the only footage being that short bw video
Im early
It's Okay To Be Smart rocks
Actually velociraptors looked a lot like birds. It was small too.
Dan Frederiksen Exactly..overgrown chickens that hunt in packs...with recurved claws and razor teeth...ouch!
Wait, so birds flap their entire "arm" but bats fly by the power of jazz hands?
correct!
Basically!
IT'S OK TO BE SMART REPLIED!!!
Einomies I love how you said that. Lol.
Well that’s fairly understandable seeing as Jazz hands make anyone look flyyyyyy
The Tasmanian Tiger was given legal protection 59 days before it went extinct (by the time they were protected there was only one alive, living in a Zoo). The last one you would think would have been cared for, but it froze to death when locked out of it's enclosure overnight, it's body then thrown in the waste. Humans can be real shits sometimes.
Gewyne We're shits all the time.
Lovely Wolf It was AFTER they went extinct, actually.
Other humans smuggled them onto the mainland.... recent sightings unconfirmed as dingo poisoning is ongoing.
Politically correct and offended by everything: It could not be after they went extinct if one was in a zoo. They would be endangered.
Most protection programs that protect animals were built in the last few decades because they realise how the food chain works.
I don't think they really knew how important lions, crocs ect, think they might of seen them as mostly pest just like the Tasmanian Tiger although I don't think that's much of a excuse they a decade maybe to studie animals more.
You had the chance to call the ant ancestors "antcestors" but you missed it
Please accept my sincere apologies! I’m slipping
It's Okay To Be Smart Hope you don’t hurt yourself
:(
*It's okay to have a pouch*
This guy uses like bots.
This guy likes bot uses.
Guy this bot uses like
It’s okay to be a marsupial
Truer words have never been spoken...
The extinction of these beautiful creature is one of the greatest tragedies of Australia's history. RIP pouch doggos
Being from Tasmania myself I'm surprised that our Tassie Tiger was so distantly related to a wolf. This was super interesting. Thanks for the well researched topic.
Marcus House - Even so, they alter, debate and change categories and sometimes they do. Science has a bit of art. It's not *all* science, but imagination, speculation and interdisciplinary politics. Just sayin, but I agree. Interesting.
Wow. Didn't you are here!
I love to watch your vids!
I wish they'd stop saying Tasmanian Wolf. How ridiculous - from a fellow Tasmanian.
well researched he called it a Mammal when its clearly a Marsupial
Since it was such a unique animal, I feel like it should have been protected more and being allowed to breed so we can have more. Now it's extinct and we will never have it back.
Based from my research, being early earns you a heart..
It your psyched about your dog tiptoeing, check out the horse's evolutionary limb development. Half of what they stand on is actually their middle finger.
Because a hoof is basically just a big fingernail.
That means llamas, goats and pigs have two fingers that they stand on.
I've seen dogs with pouches all over Brooklyn. Some of them wear hats too. Damn hipsters.
Man I've seen bearded human man wearing a baby in a pouch on its belly.
Pretty weird marsupials if you ask me, but they actually look exactly like mammalian humans otherwise.
I've never ever heard of it being called a Tasmanian Wolf.
Extinctions make me upset. I remember as a kid we even the bald eagle had very low numbers if I recall correctly.
Nowadays, I see one every month or two in jersey. It's always a treat :)
Haha nice dolphin noise (best animal ever btw). Man, I love this channel. Thank you as always ft another great vid :))
bridge4 Cool! I’d love to see a bald eagle in real life
They are pretty. I have a soft spot for the other raptors in my area. Peregrines are awesome!
bridge4 extinctions happen naturally and have been since life began. no need to fret
Hey there's some good reason to be hopeful, at least in this case, that they aren't actually extinct.
"KOALAS AREN'T BEARS ROB!!! aaaaaAAAAAAAHHHHHH!!!💥" *Every Aussie watching this*
HackedUpForBarbeque So VERY much this!!
THANK YOU
The similarities between koalas and plush toys are all explained by convergent evolution.
As an Aussie, I facepalmed hard at "koala bear".
I’m not Australian, and I was still like, “Bruh, they’re called koalas.” 😝
Convergent evolution means aliens could have dog like pets.
Or alien dogs could have human like pets.
Or human like pets O.o
Oh...
Well that explains Avatar
I'm still pissed off about it being extinct. I'm quite pissed that ANY animal goes extinct due to human stupidity.
Lawrence Tider right? I hate that because we were greedy for money or other resources, hundreds of other unique, beautiful species has to die.
RIP Dodo. You will be missed. 😢😢
Lawrence Tider
More than 99.9% of all species that ever lived have gone extinct, due to changes of the environment and or competition. That's actually what evolution is all about: survival of the fittest. Humans are, from an evolutionary view, a pretty new, invasive species. That this leads to the extinction of species that are inferior in direct competition in their natural habitat is a perfectly normal process. You are possibly aware that your food does not come from the supermarket, but is produced somewhere else. This somewhere else is where other animals used to live, before we eliminated them from that area.
There have been much bigger biologically caused extinctions before, e.g. the great oxygenation event. This doesn't mean that massively reducing biodiversity via extinction is completely unproblematic, but that species go extinct happens all the time and is a lot more natural than whining about it.
That's the way nature is, not like it's displayed by Disney.
Frank Schneider nobody cares how many are extinct. We shouldn’t just kill something off because we feel like it. You can’t say it’s evolution when humans are everything but natural. It’s just stupidity.
This is interesting: ua-cam.com/video/3qT1B8eKGd4/v-deo.html
My favourite animal. And it went extinct over 40 years before i was born.
My 2nd favourite animal is the archaeopteryx. The gap between its extinction & my birth is slightly longer. lol
"Archaeopteryx is not an easy word. But neither was it easy being Earth's first bird."
Hey man, I may get lost in the sea of comments, but whatever. My dad and I loved your videos and watched them all the time, and, after he’s passed away, I still love your videos, man, keep up the good work!
Thank you, that really means a lot. I’m glad you were able to share in something you both enjoyed, and I hope you’re able to find happy memories here in the future. 💚
This is especially fun for red pandas (panda) and giant pandas (bear). It's a true adventure of etymology (panda meaning "bamboo-eater"), convergent evolution (false thumbs), and history (with the red panda being described first, yet coming to bear the moniker "lesser panda").
Thylacines are probably my favorite marsupial too.
I absolutely love convergent evolution! It’s one of the most fascinating aspects of evolution for me!
Me too. Sometimes I wonder if it can explain micro convergent evolution in society. Like how different ancient cultures from different parts of the world all had the idea of building these great pyramid structures that can still be studied today. How does something like that happen without some kind of global communication?
Tylacyne is one of my favorite animals, when I was a child I was so mesmerized by a this species that seems like fantasy, because evidence was so fresh yet the animal doesnt exist anymore. Putting all the "humans are terrible" aside, this animal makes see how fragile small ecosystems can be. Also it makes me really sad because the Tylacine is an animal that actually makes me feel sad because of something that never got to know.
Manuel Aguilar Tirado Same for me!
Your in luck, they're working on reviving it woth tassie devil embryos
But what is _more_ terrible:
Humans or Sheep eating wolf possums?
Would be interesting to see a fight between a Thylacine and a similarly sized dog or coyote.
@@shanerooney7288humans. Need I remind you humans are responsible for climate change. We have polluted the environment in so many ways I lost count, made so many species go extinct I lost count, chopped entire forests, and so much more it is honestly horrifying.
[Me]: *Opens stall door*
[Man sitting on toilet]: We've updated our privacy policy
I've lived in Australia for 20 years. I've spent time in Tasmania. I've heard "Tasmanian tiger", and I've heard "thylacine". I've even heard the (totally incorrect) term "koala bear". I have never once heard anyone call these a "Tasmanian wolf".
Early Tasmanian settlers called it the Tiger Wolf
Convergence Evolution can be used as an excuse of why some fictional aliens are humanoid
It's more like 'Ideal shape for an environment'. The ambush, watery predator will be croc-like ( Salamanders, actual crocs and land whales). Benthonic lifeforms will always have a shape of a crab ( T H E E S H A P E). Maybe a tool-using, foward looking, big brained creature may have the shape of a Man?
*I want to make a joke because if I were to make wolf puns...I think it would be howl-arious...*
Nailed it.
gargamels
Big Punisher....from the smurfs?
Aha!
Best dad joke of the week!
Alex Minsky and we will accept that honour with grace!
:50 um THAT IS A BIG YAWN. I don't like that.
PBS Digital Studios Their Jaws open up to an extremely wide angle to help grasp onto their prey
Dragon Lover 23 that's still creepy
Ethan Wagner Never said it wasnt. Just including that tid bit of info that no one ever talks about.
It's also known as the "Beetlejuice Tiger".
AWESOME isn't it?! Combined with an incredible jaw/bite-strength (with those large and powerful muscles over its head) it will have made short work of sheep - and any other prey or predator that had the misfortune to encounter it
You’re not going to let us see the folds of the pouch?
Was just scrolling down to see if someone has taken the responsibility of talking about this . Otherwise I would have initiated. Thanks. I m not a lone who wanted to talk about this.
cephalopod and vertebrate eyes... probably the coolest convergent evo that I'm aware of...
Cephalopod's eyes actually work BETTER than ours. Mammal eyes are shitty at best (Many theropods including birds have WAY better vision than us. ) the only thing we have better is night vision ( that we evolved way before we were mammals)
Yessss a new video! I was waiting for this
Anyone else already knew it was a Thylacine from the thumbnail?
Yep
Everyone from Australia. ;)
Everyone..
fun fact: Like the Ivory Billed Woodpecker in Cuba, there are PLENTY of accounts of Thylacine being found in small populations in Tasmania, despite their extinct status. All we can do is hope friends :)
No verified accounts
Max Maxwell lol. That’s why they’re still extinct, mate ;-)
Actually, no accounts. There have only been unconfirmed sightings of individual animals but no scats in the sighting areas
A lot of the supposed sighting turn out to be foxes.
There are unconfirmed sightings in more than just Tasmania, it lived on the mainland too.
I appreciate the multitude of examples. It really helped me feel like I knew the material by the end of the video. Keep up the good work. I appreciate it!
Thanks for doing episodes like this. My school didn't really teach evolution so episodes like these are really informative and valuable! :)
I can't recommend this youtuber and his videos too highly. ua-cam.com/video/R_RXX7pntr8/v-deo.html
Human's hunting animals with no intention of eating them get me anger.
Youcant Stopme! They were hunted because they were considered pests.
^ And was still WRONG! And they were wrong that they were killing all the sheep when there were foxes, wild dogs and other humans who were doing it too.
STILL NO EXCUSE!
Name And Address Supplied
That wasn't an excuse, and I wasn't trying to justify the cause of their extinction. The farmers back then were uneducated and did not know that they were going extinct, they only saw them as pests trying to kill their livestock that could destroy their living.
Some of those old Steele Rudd stories put you into the frame of mind of the early settlers pretty well. The account of Dad and Dave's "war" on the kangaroos after they've done all of this backbreaking work on their selection, and the roos are set on totally eating their entire first crop springs to mind.
This made me so sad. Thylacine came such a long way evolving independently through natural selection to attain the canine like body suited for their environment. And then, man just as swiftly (basically equivalent to the blink of an eye in the context of 160 million yrs) wiped the entire species off the face of the earth. This is what we get if we let Man's selection at play vs. Natural selection. Very very sad.
Thank you for all you do! I already saved this video to my "evolution" playlist I have for my middle school students, I trust they'll be just as excited as I am now!!
Convergent evolution is an amazing topic
I remembered watching a wild kratts episode about them but it was mainly about their jaw
Thylacine : *DiD YoU JuSt AsSuMe mY SpEcIeS ?*
Great episode. Really learned something. Thanks for that!
Great video man ! Keep it up.
Notifications: why does this wolf have a pouch?
Me: Why *DOES* this wolf have a pouch?
Me: Why DID this wolf have a pouch?
Answer: It is a marsupial (like a kangaroo or opossum). When they give birth, they carry their young in the pouch for a time. The young stay there until they are big enough to fend for themselves.
LordShkazn Ya I know......
LordShkazn I wonder how it got it’s young inside of that pouch. I can’t imagine it used it’s paws lol
Oh My Lord Taecyeon The pouch is very close to the vagina, the tiny pink babys just crawl in and start suckling until there old enough to get out
Has ANYONE ever heard the Tasmanian Tiger called a 'Tasmanian wolf' before, or is that coming only from this guy who thinks Koalas are bears??
I have heard the term only on nature documentaries never locally.
Ooh how much I love this channel 🙌🏾
Thanks alot for doing this one. I keep asking Eons to tackle it but so far nothing. It's fascinating!
Its closest living relative is the Quoll if I am correct. Probably spelt Quoll wrong.
You mean coral ? No it isn't
It's closest living relative is the Tasmanian Devil
If they do get close to the technology to bring it back, I know they're looking at either the Quoll or Devil to be used as the surrogant mother, so that would have been my guess too as to it's closest living relative, but according to wiki, it's the devil & numbat & no mention of the quoll - I didn't expect that!
It may not be extinct. The West coast of Tasmania is extremely remote. Who knows what lives down there.
Because it’s not a wolf, end of discussion.
Dodoraptor and other animals I keep seeing you everywhere! And agreed.
Great Video, answered a lot of my questions.
Thanks for doing this piece. The Thylacine is my favourite animal ever. I would love to see you guys do something in regards to de-extinction since this animal is one of the most likely candidates to bring back if thats ever possible.
"Why does this wolf have a pouch"
Maybe because it's not a wolf??? o_O
"Tasmanian wolf, also known as a tasmanian tiger"
I have never heard it called a Tasmanian wolf before...
This was a very beautiful video. Thanks
Thank for your videos!
*who says its not okay to be smart?*
You'd be surprised... Have you heard of all of the modern day white nationalist book burnings?
Or how about all the people (even politicians) who deny the scientific process, research, and valid data.
Or even a more extreme example; Kim Jung Un, and other dictators, typically keep their people stupid so they don't start an uprising.
Oh and the worst of them all...
AJIT PAI
the damn FCC wanted data and online education to be, in essence, inaccessible to those who aren't willing to pay for it.
The internet should always be free.
And personally I think higher education should be too.
Fun fact: with the money that the government spent in the Iraq war we could have sent every person in the US (with current population growth trends) to college for 107 years...
Just think about that for a second and then aswer your own question.
I was just about to put a very similar reply Michael. I very much agree.
Whoa. Ease up Turbo it was a rhetorical question
I know.
It wasn't meant to be rude by any means. Just a little reminder of the world we all live in :/
I thought it was common knowledge that marsupials have pouches.
Necron00b it is i just did not know this thing has a pouch
It IS common knowledge. The problem with common knowledge and common sense and other "common" things is that they really aren't THAT common!
Relevent XKCD xkcd.com/1053
Actually, lacking a pouch means monotremes are not marsupials, they are mammals. They do not have a marsupium (pouch) but do have hair and produce milk for their young.
Darren Wishart-Brown monotremes are a more basal group of mammals than marsupials dumbass.
Marsupials are more closely related to placental mammals than to monotremes.
Awesome Video. Thanks for sharing
awesomely done video!
great example of convergent evolution... like how ichthyosaurs, dolphins and sharks share a similar basic shape but not recent common ancestry... oh after watching the video these examples were mentioned.
So bats have jazz-hands?
Such a cool illustration of ecological niche and the power of natural selection. I love the examples you gave for convergent evolution!
Great show!
Convergent evolution - also #1 crutch of the "Star Trek" writer.
The #1 crutch of Star Trek writers were old copies of Amazing Stories magazine.
i wish people understood that evolution isn’t something to believe in
Loved this video!
this is awesome! thanks!
Does it actually use its pouch?
Not anymore. It's stuffed.
It did. Before it died
Creative Name It keeps its cigarettes in there😉
Some people who believe in god think this is all bullshit. I don’t believe in god.
budgie It's strange listening to Creationists spouting off about the "wonder" & "majesty" of so called "intelligent design", as if there's no wonder in evolution.
If anything the the opposite is true - it never ceases to amaze me at how nature has solved (as best as it can) a myriad of problems, especially when an animal fits into a very specific niche.
If it had been down to a "creator" there's no way we'd have the vast numbers of different species that we do.
Marsupials are a perfect illustration - why would an entire group of pouched animals only be found in one part of the World?
Make an episode on de-extinction of the thylacine
They have already tried to extract DNA from pickled specimens. I don't think it was the full genome though. It is a pity, as they are secluded areas of Tasmania where their habitat is still intact.
Awesome video! 😊
Very interesting video! Thank you!
I find a topic like this interesting! What would this mean for life on other planets? If the stream lined, strong tail design is great at swimming, are we likely to find dolphin-like aliens? If it develops so often on our own planet, independently of one another, surely life evolves in similar directions elsewhere? Of course, the environment could be very different.
Thanks for the video!
Rikkapika
In principle the answer is: yes, because similar environmental requirements / ecological niches lead to similar evolutionary adaptations, BUT this will only work if the general morphological blueprint of the animals allows it (because of something we call evolutionary landscape).
In principle did all general blue prints in existence exist without major modification since the Cambrian explosion. Massive changes of these blueprints (e.g having a column, if you are a vertebrate) don't take place, as that's evolutionary impossible. Although it often doesn't seem like that, there are limits to evolutionary adaptation (at least when it comes to complex animals). This means if you and your ancestors once developed/inherited a specific morphological blueprint, you are stuck with it and only evolutionary adaptations can and will occur that in-line with this original blueprint (e.g. going back into the water by the ancestors of dolphins was, while developing a completely decentralized nervous system in dolphins is not).
This means if on a certain planet only blueprints evolved that don't allow such morphological adaptations, they will never develop and thus not appear. And don't forget not all sea animals exhibit the typical streamlined "fish" shape, e.g. many cephalopods don't.
So this means: in principle yes, that's what is to be expected, but it's not an absolute necessity (ignoring the important fact that the spontaneous development of life is a very, very rare event and thus extraterrestrial lifeforms in the milky way will also be extremely rare, especially if it comes to higher multicelllular eukaryotes). In the end we'll have to wait and find out.
Frank Schneider
Please, divide your paragraphs because I was very interested at first so I started reading but I got confused.
And if the hypothesis that the multi-celled life of the Cambrian explosion were in fact refugees ejected into earth crossing orbits as venus resurfaced at the same time period, then the potential for complex life becomes even less likely, since in that scenario, they started out on a planet with radiation & frequent mutations, then moved to a radiation stable location to evolve further.
There's so many planets out there though that even if the chance are extremely low, it's still extremely likely to have happened many times
Convergent evolution would explain why, in Sci-Fi, there are so many humanoid aliens. It works as an in-universe explanation, in reality it's due to the extensive anti-alien discrimination in Hollywood, and not wanting to shell out of decent CGI.
Yeah but nowadays they use CGI even for the most mundane stuff. I think it has more to do with the fact that early sci-fi didn't have CGI available, so humans in rubber suits was all they could do. So the human-like aliens sort of became the norm and unimaginative Hollywood producers just follow the norm.
Buddy, I was making a joke. I've watched a lot of old Sci-Fi, the original series of Star Trek for instance, and I respect the hell out of the folks who made that show work and look great on primitive, 1960s, filming technology and a limited budget.
But, on a serious note, I know what you mean about the laziness of producers - when it comes to making the aliens look alien. I mean look at the 2005 Hitchhiker's Guide to the Galaxy, while they went all out on making the Vogon aliens look amazing, in every other case the aliens looked the same as the humans, when only one alien - Ford Prefect - is known to look human, he being able to pass for one on Earth for about 15 years, even the two-headed man - Zaphod - lost his second head half way through the film. So yeah, I see your point about lazy producers.
Great video!
Love your videos🔥🔥🔥
This guy looks like a mixture of Johnny Knoxville and William DeFoe
I'm just thinking if the humming bird Hawk Moth and the humming bird can be a best suit example of analogous convergent evolution 😅 correct me if i'm wrong 😅😅
Loved your videos, and your human evolution series is my absolute fave. Can you please do a video on why do animals have colouration (the protective shade of their skin) thank you :D
This episode was very entertaining 👏🏻👌🏻
Wow, that was awesome.
I learned that it's okay to be Homologous.
So glad people aren't body shaming anymore 😉😂
Oh you are a real renegade lol
Smotan, I'm not sure you know what that word means ahaha
ig·no·rance
ˈiɡnərəns/
noun
lack of knowledge or information.
you would have the lack of information if you don't know what renegade means
Or a set of principles...
Can you lot stop adding the word Bear to the end of Koala? And the only native bear in Australia is the Drop Bear.
Drop Bears! 🤣😂🤣😂 🐻🐨
I feel like they need to be culled as there are so many Drop Bears around that I have to us an umbrella.
@Jeanie Jones A Drop Bear is kinda like a Koala but bigger and they're carnivorous. They hunt their prey by dropping down on them from the trees.
@@BirdSpyAustralia just smear some Vegemite on your head. Drop Bears won't attack you because they hate the stuff.
I'm digging this new style of shooting, out of studip with VFX intregrated on it with masking and tracking. NICE
I love this channel
Thylacines or this Tasmanian Tiger was awesome but we humans hunted them all to extinction how dumb are we
You just learned about this animal and its extinction but already formed a (stupid) opinion. Nice.
what did you expect from australians of all people?
Elmo Zarella What does being Australian have to do with anything? North Americans killed off a lot of their megafauna as well.
Politically correct and offended by everything
of course, what do you expect from a north american?
to take care of nature or destroy it?
the same with australians, the same with asians, the same with jews, the same with latinos, the same with europeans, the same with africans...it almost like humanity can't take care of something but they can destroy it.
Elmo Zarella
You stated your last comment, "What did you expect Australians of all people", in a negative way that singles out Australians. And when confronted about it, you make it seem like you're not only talking about Australians and that all humans are destroying everything. Your comments contradict each other and it's confusing, I hope you know that.
*RAWR*
Great channel. Just subscribed
Once did an article on convergent evolution, one of my favorite topics in the natural world, just so interesting!
*title change*
It was pretty clear from the view count that people weren’t liking the old title, so I reserve the right to change it 😎
Oh, makes sense.
Yeah it does
Yeah, really like the less clickbaity one. Keep up the good work!
What was the old title?
can evolution turn me into a 10?
no but it can maybe turn your chils into 10s
This was more interesting than I expected 😄
I love this channel.
nice, new info, convergent evolution, homologous, analogous.... but please, at least show us the pouch? your title really makes me wonder how does "wolf pouch" looks like.. the better title for this content, IMO, "why does this wolf is not a wolf" or "why this wolf is actually a marsupial"
No one ever calls it a wolf.... its the Tasmanian Tiger, it just looks a bit like a wolf but no one in Australia calls it that
I'm British, but have come across the term Tasmanian Wolf. I preferred Tiger because of the stripes. As for the pouch....is it actually visible in pickled or stuffed specimens; or archival film footage?
Sena Chandrahera
Unfortunately there aren’t really any photos of the pouch that I’ve seen. But I can tell you that the Thylacine had a backwards facing pouch, presumably so dirt and debris didn’t get flicked up inside while running. I believe the males have pouches too.
So then convergent evolution, as a fact of nature, should produce similar looking animals on an alien world with similar conditions to earth. They would not look completely bizarr or weird, but rather resemble known animals from earth.
That IS possible. However, look at the way that many marsupials in Australia evolved locomotion. Bounding on two legs. WHY? Why are there not more animals on other continents that do the same? It is actually more efficient than running on four legs. And also the sideways running lemurs on Madagascar. Why did they evolve such a bizarre method of locomotion? Remember that there is no direction or final purpose to evolution. You just have to be "good enough" to survive and have offspring.
I remember we had great jerboas in Kazakhstan. They look like small kangaroos. And move remarkably similar and rapid.
Yes. So why didn't more placental mammals evolve this method of locomotion? Again, evolution has no direction or purpose yet jerboas and kangaroos ( several species) have, through convergent evolution, come to this locomotive method and yet come from ancestors that didn't move like this.
It could, but not necessarily. It depends on how similar the environment on such a planet is to earth. Convergent evolution happens because two species are in similar environmental conditions and so they both evolve traits that work well in that environment, not because it's "better." Animals that live in snowy areas evolve white fur because it works well in that particular environment, for example.
Yes. Just like ichthyosaurs, sharks and dolphins.
Awesome videos plus I really like Joe's humour. :)
Great video! As a Tasmanian, when I saw the thumbnail I clicked straight away! And interesting that you called it the Tasmanian wolf, I've never heard anyone call it that before, only either a Tasmanian Tiger or a Thylacine :)
Early Tas settlers referred to it as the Tiger Wolf
I wish the expert didn't say "koala bear". Koalas aren't bears just as Thylacines aren't wolfs, so stop calling them bears please Americans.
*This wolf has a pouch cause it wants to have a pouch*
Lamarck wrote this comment
This is actually blew my mind away
Such an amazing animal; wish I’d had the chance to see one.
Before the video: The Tasmanian wolf is not a wolf, it's a marsupial. Prediction: The video talks about the many marsupials which evolved separately from continental mammals and ended looking a lot like their non marsupial counterparts.
After the video: Aw. I already knew about convergent evolution. To anyone wondering, apart from the wolf-like marsupial, there's also cat-like, flying squirrel-like, anteater-like... marsupials. It's an awesome topic by itself.
YEP. Convergent evolution. But if you don't remember much of your high school biology because you were "smoking" out behind the gym or you didn't do post-sec biology... you may not know much about evolution in general. ESPECIALLY if you were indoctrinated in YEC idiocy and were told that evolution was an outright lie and deception when it really was your religious overlords who were lying to you and deceving you.
Hey, I like the way you speak!
WeissM89 😖 Hm! It was given the name of Tasmanian wolf by people who knew no better than to rely on first impressions of the animal’s outward appearance. Calm down and have a nice day 😺
It's only called the Tasmanian Wolf by Americans heh. Tasmanian Tigerhat Australians say. If the ant rster you refer to is the Echidna , it actually isn't a marsupial, but a monotreme, which is kind more bizzare being a egg laying mamal.
96 creationists have disliked this video so far
plenty of Australian dislike rubbish like this too. We don't like people deciding to rename our animals to something completely different to what they are & pretend they're experts on our animals when they are clearly completely clueless & only spreading false information
Did you watch the video? Honest question. The woman in the video, Venessa Hill is Australian. Also, they clarify the name at the beginning with an "also known as" summary. I have a feeling that by "many Australians" you didn't exactly conduct a survey, and just ment you. I'm curious though, what exactly was the misinformation they are spreading?
Did you just make a typo? If not, add the name to the list of stuff they stuffed up on, because the description and on screen writing has her name as Vanessa not Venessa
Do you REALLY call a tassy tiger a "wolf" or know anyone that does? & you want a survey, well have a read of the comments! The most common comment on here is "it's not called a wolf/I'm Australian & I've never heard it called a wolf" etc Second most common comment is "stop calling koalas bears/koalas aren't bears"
Meanwhile, both sexes had pouches, yet the video says about the pouch & can they see it "only if it's a female"
& let me just quote wiki as to their "wolf like walking" as described in this video
_"The thylacine was noted as having a stiff and somewhat awkward gait, making it unable to run at high speed. It could also perform a bipedal hop, in a fashion similar to a kangaroo"_ yeh that sounds the same as a wolf doesn't it - NOT!
You have very low standards imo if you consider the above acceptable from a science channel!
Cetaceans and fish are the greatest example of convergent evolution , they deserve their own video .
I envy this guy for the amazingly enthusiastic people he meets. I wish I could talk to more people that get that glow in their eyes when they talk about something.