How Do Animals Change Color?
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- Опубліковано 11 чер 2024
- Changing colors -- it’s not just for chameleons! Many species of octopuses, squid and cuttlefish can do it, as well as a few insects, and even mammals and birds. Find out what feats of biology different animals use to change their wardrobes on the fly.
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Sources:
www.wired.com/2014/04/how-do-c...
mentalfloss.com/article/51225/...
blogs.scientificamerican.com/r... - beetle
discovermagazine.com/2007/dec/... - beetle
animals.howstuffworks.com/anim...
io9.com/5959772/how-and-why-an...
animaldiversity.ummz.umich.edu...
tolweb.org/accessory/Cephalopo...
www.thecephalopodpage.org/ceph... **
dev.biologists.org/content/140...
www.bio.davidson.edu/dorcas/an...
www.npr.org/2013/09/08/2201886...
www.thenakedscientists.com/HTM... - chameleon
www.sciencedaily.com/releases/... - hare www.ncbi.nlm.nih.gov/pubmed/22... - squid
www.scientificamerican.com/art...
Some humans too can change color by tanning
except that isn't caused by our own bodily functions, but rather radiation.
Well, when we blush we get red cheeks, and when we're angry our faces turn red. When we're sick or cold, we turn pale. We do change color in a way.
Mini_Squatch I thought it was our body's defense to Radiation (like most Africans), or is that what you were saying?
Mini_Squatch it is, its a "bodily function" to protect the skin
Mini_Squatch
Actually it is. Melatonin, the same thing that gives our skin color, is also the body's natural defense against the sun's radiation. That's why people with dark skin tones are less likely to get sunburn and skin cancer.
"luckily our hair doesnt turn white every fall"
how is that lucky??? i'd love it
Agreed.
However, since the outgrown hair is only dead keratin cells, we'd have to completely shed our hair each fall for it to change colour. Which would probably make it completely impossible to have long hair. Another theory would be that our hair follicles would stop producing melanin so that our hair would grow out white, but then we'd be stripey.
Take your pick.
Ikr? That would be cool
Our hair changes white when we get old
same!
This is why I really love Sci Show. Most science videos would simply say "Hey, here are some animals that can change colors, life is crazy!" while Sci Show actually goes into a deep description of how it actually works which is infinitely more awesome.
That feeling when you've been watching SciShow for so long you already know.
But you watch anyway for the enjoyment of it :)
exactly
Omg. Thank you Sci Show. The volume on this video is great. I was finally able to hear it without having to blast my speakers to full intensity, unlike many previous ones.
I love Michael's voice. It's so soothing and calm.
It's perfect. Like not too deep or too high
0:49 "I won't tell you what this means, though. It's a secret."
Michael: That's my secret, Hank. I'm always angry. *turns into the Hulk*
why cant school be like this...this easy to understand
simplicity is against it's religion
Ikr
i too can change color. If I go out side I mysteriously turn red.
😂
I grew up learning that it was Octopi, but alas this is incorrect. Octopus came from Greek, not Latin, so Octopi is wrong. It just sounds so right lol. Octopuses is the most widely accepted, especially outside of professional circles who do not use Greek frequently. This is why Octopodes is often unmentioned in dictionaries, or listed last to denote unpopularity. Me? I use Octopi. It's a comfort and habit thing. But I know I'm messing up when I use it.
Fuck u valen. I se you say yeah to every fucking comments you sick attention seeker
***** Yeah.
paige thank you so much
Octopus came from Greek into Latin, then into English as a direct borrowing. "Octopi" is correct Latin. If you want to be (anglicized) Greek, call them "octpods". And say "hippopotamoi" instead of "hippopotami", though it will ruin a perfectly good song by Flanders & Swann.
I love the way his voice changes every time he ends a sentence.
It gets all airy and the frequency dips.
I was jokingly going to go on a small tirade about "It's octopi, damnit!" but I decided to Google it first and it turns out I was wrong. Octopuses is more correct than octopi.
That is a great thing. Being wrong that is. Realizing you were wrong means you have learned something, that you are making progress.
In fact the three most powerful words are not "I love you". Even more powerful than that is "I don't know" but the most powerful three might just be "I was wrong".
I say it proudly: I was wrong! =)
Hm I think that even more important three words are "I shall learn".
Vinay Seth maybe if people still said shall
@@raccoonman4691 Cool. "I will learn' then.
6:07 "These changes started as quickly as 2 minutes into the...'festivities.'" lol
This is one of the best, most organised, and well-spoken episodes of scishow i've seen to date. Good job guys!
I think they need to do a QQ on pluralizing octopus!
Michael's such a great teacher, I'm glad we get more videos and Hank gets more time to handle other channels. Either way SciShow rocks!
WoW, that was executed and edited wonderfully, I'm a tad envious of how well the information and internal tie-ins were conveyed. Great Job!!! Does Sci Show have a video on Why do some animals live in tight communities while others are more disperse, solitary?... I'd love to get ya'll point of view. Keep up the Awesome and amazing job!!!
Your voice is so relaxing, could listen to you all day :)
The cool part with octopuses/octopi (I'm staying out of that discussion) is that they can change textures as well. There are definitely videos of it online, but it's quite a site to watch a smooth octopus go poof into a rocky-looking octopus.
I never knew beetles could change colors as well. Also had no idea the cells changed color / expanded / contracted based off nerves and muscles. For some reason I thought it was based off ... reflection of light ... or something... I don't know. Magic.
I do know sailfish, among other fish, change color to signal mood and also to coordinate hunts.
Cool video! Thanks :)
I really enjoyed the tone and subtle humour of this episode.
youre all wrong the plural is octasquad
You didn't mention any spiders... I once saw a spider in my back yard in the process of changing colour rapidly and dramatically. (Red to white.) Quite something to behold.
VaLen tine
who are you? and why are you spamming with your yeahs
Really great episode
how about humans that blush / flush when aroused or embarrassed? Slight yellowing when sick? We subconsciously pick these slight variances in coloration to determine the health and emotions of a person.
Fascinating. Thanks.
I've seen insects that change color. I used to rise greater anglewing katydids. Usually they were entirely bright green. But if they were scared their legs turned red. (I only saw their legs red once. Mine had a pampered life and were rarely scared.)
the color green describing a person can have several meanings, envious feelings, being an extreme novice, sick, or being in a good mood. my guess is the host was in a good mood
Home Run! Seriously, SciScow crew, you knocked that one out of the park!
That golden beetle is just pure awesome! I wanna have it as a pet!
Housecats also change color seasonally. I had a grey tabby that noticeably transitioned to brown in in autumn and back to grey in spring.
Fookin great video man. Very informative.
Wow!!! amazing!! So many colors
That's crazy that they induce these color changes willingly I thought it was more of some involuntary function but, just imagine if you could think about changing color and it happens :o
A friend of mine had a Yemen Chameleon and most of the time he had a light green color with yellow and blue on it. But everytime he went on holiday, he left it at a pet shop that took care of him. The Chameleon didn't like it there and immediately turned brown/dark green and turned back when he was safely at home again :)
Interesting and Informative ❤️ !
This is great infotainment ❤
0:50 that's Shrek is love,shrek is life face :D
I love this show
This would have been great if you could have provided some footage of the animals changing color rapidly. The info about the beetle was interesting and would have been really cool to see change color...
YOUR HAIR IS AWSOME.
VaLen tine lol
The little golden beatles were amazing but I do have to say I wish we had seen footage of squid changing colour because they really are quite stunning to watch. The colour and patterns seem to pulse through their body they are like a wee underwater disco ;D
Squiddy on the dance floor.
Hi, I was wondering if you could do a special on algae blooms. I'm near the Toledo area and we are currently experiencing an insanely terrible and large scale water crisis because of algae blooms. I would love to know more as to why this happen or just about water purification or algae anything for that matter. Thank you for giving me countless hours of random and useful information!
I was given to understand chameleons dont use pigments to change colors, but special Crystal's that ger closer or further apart to reflect different wavelengths of light
wow...tons of info in this episode
I know you've done a video on this recently, but humans do have a way of rapidly changing colour to communicate mood, it's called blushing.
"... as quickly as two minutes into the... festivities." lol XD But joking aside, that was a really fascinating episode.
you should talk about the science of two time dimensions
Humans show this seasonal change too (or at least everyone from my family anyway). Every winter, all the hair on my body turns very dark (including the hair on my head) whereas in the summer it goes much lighter especially the hair on my legs and arms as they go almost white. My head hair is less dramatic as it changes to a dirty blond/light ginger colour.
i love this guy
You people are heros !
I'm guessing the sci show editors are either using a program which doesn't allow multiple video files (video in video) or they haven't figured out how to add videos in frames when they edit, as this was one of the videos where I felt adding videos of ex. chameleons changing color. Would've made the explanations way clearer and easier to follow. Nonetheless, it was a cool video teaching me new thing about these animals! ;]
Who else got the techni-colored dream coat reference?
"Chameleon" Circuit :D
Which uses more electricity. A single nightlight such as one you would plug into an outlet or a single light blub from the ceiling?
Do an episode on the pineal gland and its wonders
Next topic:
EmDrive studies summery?
Thanks!
Oh my gawd the flapneck chameleon is so cute 😃😃😃
That is one of the coolest things animals can do.
That green meant a color filter on video manipulation program.
VARY COOL !
Hank's voice is more interesting to me, and doesn't this guy have his own science channel?
"Technicolor dream coats" awesome band name... I wonder what kind of music these guys would play? I would like to say techno.
A "three horned chameleon" is called a Jackson's chameleon.
Have the chameleons and the cephalopods evolved their colour changing powers independently? Seeing as they have little else in common I would assume so but from the video it seems they're very similar processes.
9 hours? that sounds... fun...
Interesting about that beetle. I didn't know there were any insects that could change colour.
In some chameleons, turning green is a show of happiness or being relaxed
humans can change colour, however i wouldn't say tanning/sunburn counts as not all humans can, i would say more along paling or blushing when putting more or less blood to an area of the body, although usually the face. also it isn't rare for human hair to be lighter in summer, and darker in winter, mine does it.
*gasps!* that bug is just the most beautiful gem ive ever seen. my new favorite bug
octopi are my favourite aquatic animals. SOOOOOOO COOOOOOOOOL :D
Did chromatophores evolve independently in different animals, or did they share a common ancestor that had them?
I'm slightly sad that the broad club cuttlefish didn't get a specific shout-out- check them out, they're awesome!
that beetle's going super saiyan!!!
information overload
in 2015 scientists found out chameleons are NOT changing color by expanding "color sacks". its crystals.
Pls do a thing on shrink rays are they possible and how close are we to getting them
5:53 respect bro.
2014 baby, yeah!
2:25 "members of the mollusk family"
Mollusks are an entire phylum of life, and cephalopods are a class! Neither are a family!
when he said octopuses was anybody else like "its octopi!!"
Same here. I cringed every time
ACTUALLY YOU ARE VERY WRONG! IT IS OCTOPUSES!
littlebitwonky ok, you pass
perfect picture for this
@stevennguyen either works, octopi or octopusus
I love the blonde in your hair :')
That female chameleon looked like it had a heart shape on their side :> ♥
As we all know, when a human is exposed to sunlight, he/she turns darker. What happens exactly? Does the body start producing a lot of melanin when it "feels" the sunlight? And how does the melanin protect the body from the sunlight? Does it have something to do with its color? If it does, wouldn't it be more useful for the body to be light-colored when under the bright sun because that way it reflects and doesn't suck up all the sunlight? If it doesn't, why does the melanin make us darker in the first place? Is there any use of it?
Octopuses? I thought it was octopi?
Technically both are correct, but octopuses is better since "octopus" comes from Greek rather than Latin.
SuperPlatypus123 why is it coming from greek more favorable than it coming from latin?
Mr.J1S Ending the plural form of words with "i" is latin.
Mr.J1S Because greek and latin have different techniques for making words plural.
Mr.J1S If octopus were a Latin second declension noun the plural would be octopi (in Latin, not in English). The Greek would be something different (I believe its octopodes but I'm not sure). So it is more correct for English speakers to pluralize the noun as if it were an English word (octopuses). I know a lot of ocean scientists and I don't know anyone who uses octopi as the plural of octopus.
Can you please do a video on the New prototype Magnetic motor?
Hello SciShow. I just got done watching John's Crash Course episode on War, and he brought up something interesting: humans like to protect extended family because they have similar genes to us, and we want our genes to survive. Why is it then that we are naturally (that is, since prehistory) repulsed by incest? We know now its bad because it can stack negative genotypes, but shouldnt that mean it would be advantageous to eliminate our extended family and surround ourselves with genetically different people?
I'm both very amused and slightly depressed at the number of comments "correcting" Michael about the pluralization of _octopus_.
I keep hearing "cuddle fish". lol This needs to be a t-shirt or something.
could you please put subtitle for all the shows till these become more useful for all who are less familiar with English language.
good video
0:26 Octopuses?! Raaaawwrrrrggg!!!
nice
By lady Beatle are you referring to what is also called a ladybug?
cool
pretty interesting.......
One thing I don't see explained is how a octopus knows what color to change to blend in to their environment. Is it by eyesight, are there some sort of sensor cells on the skin...?
I found that beetle when I was a kid. My class went to the river to get an insect to study for a few weeks. I was the only one with a beetle that turned gold.
Octopi! 4 times! how did they not catch that! LOL
yea but how do chameleons change colour by touching an object? I mean do they feel the colour of that object and change colour accordingly? or do they change colour randomly?