How Do Chameleons Change Color?
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- Опубліковано 10 бер 2015
- New research shows chameleons actively tune nano-crystals to change their color.
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Chameleon research in Nature Communications: bit.ly/1FacHO2
"Photonic Crystals Cause Active Colour Change in Chameleons"
This research was carried out by Jérémie Teyssier, Suzanne V. Saenko, Dirk van der Marel & Michel C. Milinkovitch at the University of Geneva Department of Quantum Matter Physics and the Laboratory of Artificial and Natural Evolution (LANE)
Original videos of chameleons are here:
• Chameleon colour chang...
• Chameleon colour chang...
• Chameleon colour chang...
• Phelsuma Colour Mechan...
Additional details available at: www.lanevol.org/LANE/chameleon...
For correspondence: Michel C. Milinkovitch, Laboratory of Artificial & Natural Evolution (LANE), Dept. of Genetics & Evolution, University of Geneva, Switzerland.
The melanin spreading out video is courtesy of Richard Wheeler:
• Fish Melanophores & Ad...
www.richardwheeler.net
Special thanks to:
Harry, Jo, Daniella and Raquel for helping me produce and film this video - it looks great thanks to you!
People who came here after ""Chameleon changing color" after "when a chameleon trust you" , Have a nice day !!
You don't know me space man.
omg i did
hahahaha here i am
Yes
How..
"your crush is coming, act natural"
Chameleon:
OH MY GOSH, THIS COMMENT IS SO UNDERATTED
Naqiyah Mulachelah R A I N B O W T I M E
@@sheaking4316 agreed
this is a great comment :)
Relatable...
Apple: we have best retina display
Chameleon: hold my crystals..
so with proper genetic engineering.. you can make a tv out of their skin?
Rio Nevin @vertasium Answer him.
Rio Nevin Who needs a 4k when you can have a Chameleon T.V.
Not really... We could say that charmeleon skin acts like a mirror, so it depends on the surrounding light. A neon lamp and a led one could lead to different colours on the screen. And this is just one of the possible problems
Rio Nevin it workes on the same principal, no need to slaughter millions of chameleons
Hahaha
So you're telling me they don't use photoshop?
They used to use photoshop but then Adobe made it more expensive so they had to switch to cheaper method.
Hackis Bell Now they use Gimp
***** Chameleons
LOL, first up-voted this awesome comment from OP, then clicked show replies and up-voted that awesome reply too XD
Hackis Bell dude, creative cloud is awesome how dare you
Now, apply that technology to clothes. That would be SO AWESOME!
Sweet
Blue and black, or white and yellow edition?
Currently, creating such crystals at a tiny scale of nanometres is expensive.
That would be a nice concept. So we will have clothes made of capsules with nanocrystals. How do you suggest we adjust spacing? Electrically, like in e-ink screens? Or mechanically, as in "turn the knob, change the color" by compressing the capsules themselves?
Daniel Hutňan YOU have solved the riddle
his shirt changes color at 0:16, pretty cool effect
yeah
yeah but lots of times .LOL.
But at 00:7 you can see his shirt invisible
Check his shirt out at 0:10
Must have got exited..!! :P
my wife changes color when she is pissed lol...
+Michael Ramirez you wife may be a Chameleon then.
+Michael Ramirez Then your wife has nano crystals under her skin. Cut and check :D lol
+Michael Ramirez That also works the other way around, because when the color of her underwear changes you know she's pissed :'D
Michael Ramirez I read that as wifi
Michael Ramirez
Waifus dont change color....
What he didn't explain is how they are able to CHOOSE the color they turn.
+Rob Johnson He also never claimed that he would answer that question lol.
I didn't suggest he should have. But he should have...lol
***** Fair enough.. Yeah I agree haha
+Rob Johnson From what I know it is done unconsiously, like blushing for example.
White Knight Oh? Great! Well i think i might blush "Turquoise" today just for a change...
0:16 That low-key shirt colour change!! ;)
i saw it
TheShernie You act as if you and you alone saw that and for what?
OrangeCrush Gaming You act as if I and I alone care about your opinion. #rekt
@orangedumbass what a dumbass
He might be in presence of a female.
2:53 The facial expressions of the calm chameleon and the excited chameleon are fantastic
me: So THAT'S how chameleons change colors.
my wife: How?
me: I don't know. crystals?
i mean, first you gotta look up what a crystal is, then you understand why colors, or hold a crystal in sunlight 🙃
Fascinating! Many years ago I gave a report on how the color change happened, and it was via chromatophores - tree-like cells that shifted their "branches" causing the color change. I can see how that was refined into this, since the shifting part of the cells is obviously the important part. What was missing was the nano-crystals, which makes it much more logical and much cooler. Thanks for the video!
This video actually says the chromatophores don't do anything at all
And how do octopus change colour?
It's the first explanation they gave. Pigmented cells have a way of expanding and contracting becoming darker or lighter.
Thank you very much ^-^
***** they don't, you know it wrong
***** octopi*
MY PENIS IS PARTICULARLY NORMAL. PENISES HAVE NO TASTE, EITHER. I KNOW FROM EXPERIENCE.*sees the username............facepalm*
2:08 chameleon has a green heart on one of the red scales near its face.
.... yeah I see it wondering how you did
🦅 👀
Dude got that 2020 vision
Hi. First time I comment on your videos, so let me say I really like your channel.
As a scientist, I find that a lot of youtube content falls way too short on communicating science in an accurate and accessible way, but your videos really accomplish that. Everytime I watch one, I learn something new.
I am a photophysicist and I deal with colors all the time, so I really enjoyed this clip.
I just want to leave a small correction. The green color cannot be created by the combination of yellow pigment and reflected blue light. This is something that I find hard to explain to colleagues and friends that do not usually work with optical materials, but pigment color and light color are not the same, and actually, they are complementary (opposite). Light has 3 primary colors, Red/Green/Blue (RGB), and pigments have Cyan/Magenta/Yellow. For a pigment to be yellow, it will have to absorb blue light, and reflect Red+Green. Thus, the Yellow pigment would absorb the blue light reflected by the nanocrystal layer, or, otherwise, the color would be white. To yield green, the nanocrystals should reflect green, and the pigment contribution should be minimal. If the information on that study is written as you explained here, it should not be correct.
Keep up the good work
Cheers
We learned this in design school! It's so cool how such different fields can overlap sometimes.
did anyone notice....his t shirts color change?
Oh I didn't, that's cute.
Halley Rai Would be surprised if someone said they did not notice this... it is fairly obvious
I think it changes from blue to red. .....)
I swear it was white and gold.
***** Well that's not very nice to say that.
Next how does a cuttlefish change color.
It's called the ''cuttlefish'', but cuddlefish sounds really cute ^^
also, HI! BIG FAN OF YOUR VIDS
Muscular control of their chromatophores
fenojack
oops! Thanks for the heads up!
My favorite cyber watches this too :D?
***** No
did anyone think they were tripping when his shirt changes color LOL
I knew why that was happening :D
I swear 😂😂😂
No bc im actually tripin
same lmao
He's an undercover chameleon and he is explaining how they change color
It all started from "when a chamelion trusts you"
RIP Teemo, long live Chroma
Chamechamechamechamechamechamelioooooon!
RoniTiihonen Chame-lion?
They come and goooo
i don't know, i'm from finland
Afro Samurai And karma karma karma karma karma chameleon just sounds stupid
bender?
Its neat that modern science was wrong about something so commonly accepted for so long... its humbling and a testament to the flexibility and objectiveness of the scientific method. Also, I think it is really cool that evolution has bridged the gap of practicality between microscopic wavelength-specific reflecting crystals and the larger world of a Chameleon's behavior.
Mckenna Cisler evolution brainwash makes you blind bro, random chance mutation causes deevolution and if there was a random mechanism creating new body parts blindly where are they? Not all new parta that are non functional would be fatal, you should have genetic freak structures al over you and all over every living thing...yet we have perfect creatures
Evolution is not an active agent
I hate when people speak of it as such
@@That777GuyAgain We’re not perfect creatures lmao and micro evolution has been proven and macro evolution has basically been proven through fossils and carbon dating. I’m guessing you think the earth is only 6000 years old as well huh?
@@That777GuyAgain you are sort of correct in a small way, but still wrong. Not all non beneficial random mutations would be fatal, but because they would be less beneficial than random beneficial mutations, those with beneficial mutations would slowly outcompete the others, essentially wiping them out anyway.
@@That777GuyAgain ummm, you never knew that people are born deformed all the time???
Great video! Chameleons' color-changing abilities have always been a marvel, and this new research uncovering their nano-crystal tuning is truly remarkable. Nature's ingenuity never ceases to amaze. 🔬🦎🌈
Holy cow the audio in this video is so crisp. Whatever you're doing/using keep it up!
Incredible. Even in these modern days we still have a lot to learn from nature
Wow that's amazing. I love seeing discoveries that make what we assume to be simply more complex.
0:40 - Ninjutsu. He actually waves a sign with his left hand! Solved!
This is literally the only thing I‘VE ever wanted to know
Nah..why is it when you get closer to your bathroom the urge to pee becomes more intense?
@@darkincognito3826 that too!!
Do we know if it's a conscious choice to change color or if it just happens? Is that even philosophically solvable? What I mean is, is it like us getting goose bumps in cold weather or is it more like us shaking our fists at people we're angry at? Does the chameleon think "Oh damn, a rival, better move around those crystals!" or is it an automatic thing that goes hand in hand with an accelerated heart rate or whatever happens in the animal's body during a rival encounter?
Its most likely caused by the hormones released, and i dont know of any living species that can control emotions.
TheTitaniumWolfman Vulcans! (Spock)
You mean is it behavioural, structural, physiological, or psychological? My guess is physiological.
TheTitaniumWolfman Humans can control their emotions to a small extent.
The Real Flenuan I'd say a significant extent. Small sounds... too small. Some emotions are deeper than others and are virtually impossible to tackle except by long time and effort, others, like fear, anger, anxiety... we can often reason ourselves out of them relatively easy. Ruining our own happiness is also ridiculously easy, but nobody really tries to make an art of that for obvious reasons.
Our emotions can be powerful, but I really think that depending on the person, more often than not, we do have the power to make a difference on our emotions. We can also of course consider the fact that we sometimes make the wrong choices and suffer the emotional consequences of them, and while we may not be able to deal with the consequences, we did after all make the consequences so we kind-of did exert power over them.
I see your t-shirt color changed at 0:18, nifty!
Hey Derek, I was at the Adelaide Museum today where they currently have a cool exibition on Opals. They played this video to explain the color play in precious opals. (since simialar) Good stuff !
Dude I love your channel. I'm so glad SmarterEveryDay brought me here.
Somehow I feel like the information contained in this video will never rid the chameleon of its association with perfect camouflage... xP
But seriously, that was very interesting! Great explanation Derek! :D
People still think dinosaurs are boring-ass lizard monsters, so chances are this misconception won't die for a long time.
Michael Langfitt Unfortunately the idea of dinosaurs with a coat of hair-like feathers is not so appealing to the general masses. Although it does open up a whole new range of interesting plausible designs of dinosaurs in movies and such, so it's really too bad it's not embraced.
This is definitely interesting because it's different than how octopi change colors but with octopi and certain species of chameleon the skin color can be changed to match its surroundings. My thought is what if the creature was blind? Would it just change colors wildly? Or would it revert back to displaying emotions/ social cues through color?
This channel is awesome! I really like Veritasium it's really an awesome channel and a good way to learn. Thanks for uploading these videos!
Great video, really liked it. Illustrations clarified the concepts for me.
This chameleon isn't green
Vsauce anyone? xD
Michele Fio noice
Michele Fio
Nope.
Chameleons are normally different colors.
Which episode?
Exist64 this lemon is not yellow
What really amazes me is how this animal in nature just seemed to know how to change its color by the microscopic spacing between the crystals in its skin.
It's a God-thing! It's a miracle of creation!
@@carolynperez2440 no
@@carolynperez2440 yes
@@carolynperez2440 nah
Aliens
Love this video, thank you for making it!
Wow! This has been very interesting (like all of your other videos) because I never knew how chameleons changed color!
I swear to God if anyone mentions that stupid dress in the comments.. I will have lost faith in humanity...
I see White and Gold btw.
I see White and gold too
450 subscribers and no videos?
How to get subs these days!
1. Have a picture of a girl on your profil.
2. Have a girl name.
3. Wait.
Viktorrrrr or it might be the fact that I had videos up in the past.
Did you lost it already? because you just did that exact thing.
Kelly Davis Yup, but it still looks weird.
thanks for such good videos.
A friend of mine, a physicist does work on nano particles. This is a fascinating subject. With introducing nano-particles you can change the behaviour of materials in amazing ways, f.e. make them more flexible, stable and keep some of the features you want ...... its brilliant!
Your T-Shirt color indicates that making UA-cam Clips excites you :) Great explanations, great presentation as always! Keep it up
2:54 "excited chameleon." That sounds like electrons🤓😂
Sounds more like plasma lol if u know what i mean
u said it right after i thugt it:
" we thought we had the answer"
I'm thrilled to see what happens in the next 50 years. not even to think of 500....
Well done, good sir! I loved this video, from the green screen tee to the science behind the creature. That made my day.
you are amazing, congratulations for your job! please do never stop doing it
4k RGB chameleon display XD
Would it be possible to built a TV out of it?
I think it would be way to slow to allow the framerate. Might however be able to be used in some display that need less update like an information board
Tricky, because TVs generally don't work by reflecting incoming light.
Yes, kinda. It's called an optical interference display. You basically take two plates and change the space between them to change the wavelengths that constructively interfere. There might be a way to make colored e-paper this way.
Aside from plain issues of manufacturing these things cheaply enough, there are two issues that I imagine: one is that you can not mix colors freely this way, so magenta is out of the picture (no pun intended) and the second is that you can't up- or downregulate the amount of light you reflect so producing desaturated colors and colors with less lightness is a problem (especially, say, black). White is probably not as much of a problem as one might think because plates that are far enough apart won't cause any interference in the visible spectrum at all and therefore the white or backlit background shines through. One would probably solve the saturation problem with an LCD layer between the white background and the color-producing layer but how one could change value/lightness and saturation independently from each other is not clear to me. Maybe a backlight that can be regulated on a pixel-level solves this problem ... or you'd need cells that can be reconfigured so quickly that they can switch between white and color quickly enough to use the same PWM trick DLP projectors use to change brightness ... I'd have to think about this. How many stacked layers of color-producing cells you'd need to get at least the RGB color space is also not clear to me.
If this idea work, the biggest issue with it that the tv will be useless at night
GeeGne -bAb That doesn't even make sense.
That was such an awesome, informative explanation! Sub earned!
loved it!
new challenge, how they do it!
it's awesome how in science every time we find an answer, a lot more emerge.
They're Mood Lizards!
They have HSL preinstalled
What is HSL
??
I wonder how fascinating our nature is.Amazing!
With videos like this ,honestly I won't mind spending the whole day scrolling down UA-cam.
Tnx for such an instructive video.
Am I the only one who noticed that the UA-cam like button is now measured in K ?
K comes form the Greek kilo which means a thousand. In the metric system lower case k designates kilo as in kg for kilogram, a thousand grams. Even here there is some ambiguity. In the language of computer science K is 210 = 1024.
K/kilo in computers is variously 1000 or 1024 depending on who you ask. I prefer the SI approach: K (kilo) for 1000, Ki (kibi) for 1024.
TazeTSchnitzel Neil deGrasse Tyson ✪ Its because computers use binary ("counts in twos") instead of decimal (base 10).
kB = 1000 bytes
KB = 1024 bytes
I work in the computer business and rarely ever see KiB :)
Nice trick with that star. Fooled me...
krinord
I'm aware of what binary is. Using powers of 1024 is a hack to avoid expensive division and multiplication, where you can just use bitwise shifts.
I'm upset that people refuse to adopt KiB, MiB, GiB, TiB though. Creating confusion with SI units is a bad idea.
Also, no, kB and KB aren't different. kB is just a misspelling of KB.
I wonder: how many Chameleons had to die only for us to know how their "magic trick" works.
None hopefuly.
The easiest way to answer your question in a less scientific approach, studying a chameleon won't harm him. Cells could be studied by simple getting a fragment of their skin, saliva, or anything an animal produce. However, studying an animals biology and systems specifically leads to what students call "Disection" which literally leads to inevitable death. However, those act only happens to few animals who passed consideration. Meaning they don't just kill animals to study at will.
the extent and 'severity' of animal testing has to pass an ethics panel and justify any harm caused as worth it in terms of impact of the research being done. since this isn't exactly 'high impact' science, I doubt they would have gotten approval to sacrifice them. but i imagine getting ahold of an already expired chameleon corpse isn't exactly hard to do either
Thanks for the explanation on how they change colors when excited/agitated, but I wanna know, how do they change their color when they touch things? And how do they 'mix' those colors too?
This is fascinating. Great narration and presentation. Well done.
eddyvideostar jioni
Veritasium, it's thanks to you that I became motivated and started making my own videos (in fact, I uploaded my first videos only last week!) in the hopes that I can help more people aspire to look at the world from a Scientific perspective. And if anyone here is interested in watching other science-based videos, please give my channel a try! I strive to make my videos as visually appealing as possible, and as a grad student who is trying to put himself through school while also supporting his parents, your support and viewership would be much appreciated! Thank you guys :D
i was gonna skip past your comment like it was spam, but i checked out your channel. nice vids bruh
It truly amazes me how chameleons have brains so much more advanced than us by being able to manipulate their body color accordingly
I think it's more of a physiological response to environmental stimulus, not an active choice, kind of like blushing
And nobody teaches them to do it. There isn't a daddy chameleon saying to their son "You have to separate the crystal in your body to achieve red, my son" - they just... know.
I quite enjoy this man's manner. This subject matter is utterly fascinating but his enthusiasm would probably compel me to watch a tutorial on something I thought I wasn't interested in.
Brilliant. Utterly bloody brilliant. Damn, I just adore your videos.
What does "crystal" mean in this case? Are they _like_ crystals in their shape and function, or are they _actually_ crystals?
No dude
This is amazing... :O
This was the coolest fact ever! Thank you!
thanks for posting such video that cleared my dought
UA-cam; teaching me more than I ever learnt in school.
And if we were wrong about this for so long, just how many other things might we have been wrong about for even longer?
Like if the earth is flat? Well not to point fingers, but you are right. We don't know if the world is round, because EVERY image of earth on Google looks like CGI! I mean really! Give me a picture! I want to see it! (Paintings don't count either)
*****
You don't need a picture, just to know that all our math for motion only works if the Earth is round and rotating, and orbiting.
BioniclesaurKing4t2 Not true man, Life on a disc would be totally doable.
*****
Do you even know how many inertial force terms need to be added to an equation to account for all the "extra motion"? And not all of them are at "nice" angles to the surface, either.
*****
Do you even know how many inertial force terms need to be added to an equation to account for all the "extra motion"? And not all of them are at "nice" angles to the surface, either.
Nice video and now I understand more about chameleons, it was an interesting video and I'd like to learn more about them.
This was a super interesting video.
I mean, all Veritasium videos are super interesting - but this was even *more* so. Love it!
Yet ive seen many videos where they change color to match their surroundings
XenoNova Gaming photoshop
Adam Patterson
Nah, it’s just a different type of chameleon. Panther Chameleons change color by mood. 1st Gen Chameleons is by camouflage.
Chameleons don't change color instantly, it takes a minute or so. Any video you watched that had one changing in a matter of seconds is just photoshopped.
Those videos are fake. Loads of them on UA-cam.
What even.... I am convinced we literally have no clue how mysterious the nature is!
This has perpetually blown my mind as a child and it still does after learning this!
A complex design as this creature must have a great Designer. Simply mind blowing
Is it voluntary or involuntary?
Reflexive
WISH I COULD DO THAT!!!!😃😳😵😨
WOW! I love this channels that make you always learn something :) Thanks for sharing
thank you very much for this video, it's very informative!
Now, all my questions have been answered...
Dnews straight stole this
This blew my mind completely!
Good video.
One aspect I missed from the video is an explanation on actually how is it that the crystal spacing is triggered and regulated: adrenaline, cortisol,other?
At around 3:00 you mention scientist examine skin samples from a not exited an and exited chameleon and the crystal spacing was different. Then, can we infer the process to regulate spacing requires some chemical to separate the crystals and another one to cluster them together, without a "default" spacing, otherwise the skin samples would have reverted to the "default" spacing.
"I've got you under my skin" ;-)
Vladimir moment
@@watersheep6590 I thought it was Frank Sinatra.
@@Bob3D2000 it’s also a quote from Vladimir in league of legends
5 years from now, UA-cam knows that my New Year’s Eve is colorless and wants to help me out with the ability to change the colors.
I reaaaally like this video. Mind Blowing. Thank you!!
I love how your shirt changed colour too!
I can give a explanation:
Bragg's law 2dsinθ=nλ
As distance between atoms(d) increases wavelength(λ) also increases. Since they are directly proportional.
wrong
when I saw the tool press against the skin and the colour changes to blue, then a question came up, if that chameleon died, does the crystal mentioned in this video still remain active to be able to change colour?
Interesting video, thanks for producing it.
This vid was great u got yourself a subscriber
HIS SHIRT WAS CHANGING COLOUR
Mimetic skin gene mod.
'Nuff said.
Truly and extremely interesting! You have just earned yet another subscriber. Keep up the great work!
Interesting. I’ve already seen this exact video at my university when they taught us about reflection and diffraction of waves.
anyone noticed the hair sticking out of his right ear??
I did :D
Do they use RGB combination🤔
This video explains everything I want to know thanks so much 😆
OMG, your videos are so awesome!