tag:blogger.com,1999:blog-1850379426161011153.post1515455623825276852..comments2023-10-24T15:18:37.944+02:00Comments on Ionian Enchantment: Chameleons DO change their color to blend in with their environmentAnony Mousehttp://www.blogger.com/profile/08077107616686254136noreply@blogger.comBlogger12125tag:blogger.com,1999:blog-1850379426161011153.post-20564544829309994722014-09-07T22:20:00.648+02:002014-09-07T22:20:00.648+02:00Thank you for the article. I knew it was absolute ...Thank you for the article. I knew it was absolute nonsense to claim that NONE of the species changed their colour for the sake of camouflage.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1850379426161011153.post-67752701589374286382013-07-15T21:52:58.100+02:002013-07-15T21:52:58.100+02:00That video is fake, veiled chameleons cannot chang...That video is fake, veiled chameleons cannot change color like that. And chameleons don't change color to blend in with their surroundings. Yes most wild chameleon's natural color is the color of their natural surroundings, but if you take a chameleon and put it in front of a bright pink, blue or whatever color wall it will not and cannot change into that color. Chameleons change color based on mood and temperature, or flare up to brighter colors to attract a mate, or scare off other chameleons. Anonymoushttps://www.blogger.com/profile/08764824768248688263noreply@blogger.comtag:blogger.com,1999:blog-1850379426161011153.post-53272015443799712792010-08-29T15:25:26.658+02:002010-08-29T15:25:26.658+02:00True or not, that is a hell of a Chameleon to pull...True or not, that is a hell of a Chameleon to pull that stuff off. Loved it!Reveillon Axé Moihttp://www.reveillonaxemoi.com/noreply@blogger.comtag:blogger.com,1999:blog-1850379426161011153.post-34698309524670052732009-09-08T19:37:26.164+02:002009-09-08T19:37:26.164+02:00@Michael
Interesting post! I like the "calli...@Michael<br /><br />Interesting post! I like the "calling bullshit on calling bullshit" approach! (btw, the "h" is missing in your youtube link).<br /><br />@Who am I?<br /><br />I know you're half joking because of the ghostly ninja stuff, but why would sexual selection favor camouflage in males ? While I'm no biologist neither, natural selection would probably select towards the other way around : females should be selected to be more cryptic because of the implications of sexual reproduction : reproduction rate, offspring bearing and raising and so forth. This is what we see in some cryptic butterfly species : batesian mimicry occurs in females rather than males.<br />In the same way, it seems that sexual dimorphism of plumage coloration in birds does not always come from sexual selection of colorful males but a derived specialization of females to be able to avoid predators. (<a href="http://books.google.ca/books?id=dcgFoz5aSFAC&pg=PA38&lpg=PA38&dq=cryptic+butterflies+sexe+differences&source=bl&ots=VOi9tVoFWX&sig=XTlIkHT1JQpIbIr72ik6D9BaCl0&hl=en&ei=R5CmSpLJEMnrlAfbpcSEBw&sa=X&oi=book_result&ct=result&resnum=2#v=onepage&q=&f=false" rel="nofollow">http://books.google.ca/books?id=dcgFoz5aSFAC&pg=PA38&lpg=PA38&dq=cryptic+butterflies+sexe+differences&source=bl&ots=VOi9tVoFWX&sig=XTlIkHT1JQpIbIr72ik6D9BaCl0&hl=en&ei=R5CmSpLJEMnrlAfbpcSEBw&sa=X&oi=book_result&ct=result&resnum=2#v=onepage&q=&f=false</a>)<br /><br />"or even that the males use that ability to fertilise them without giving the female much choice (no one ever said the natural world was nice)". Well, you're right about the natural world not being nice, but it also means that there already exists much simpler ways to "not give the female much choice" than evolve a really complicated camouflage system. And I fail to see (no pun intended) why the female couldn't use other clues to detect the presence of male that close to her. And it's not like they are really fast running creatures... And I'm not a specialist of chameleons, so I don't know much about their visual system, but maybe they don't share it with their most common predators, in which case it would be kinda useless. Furthermore, if the cryptic nature of males impacted the females reproductive capacity, we would expect them to develop a counter adaptation.<br /><br />Shorter : what Michael said.BDNfhttps://www.blogger.com/profile/03928948578344551538noreply@blogger.comtag:blogger.com,1999:blog-1850379426161011153.post-83285654707019392832009-09-08T15:46:47.573+02:002009-09-08T15:46:47.573+02:00Begin anecdote:
My brother-in-law once had a pet ...Begin anecdote:<br /><br />My brother-in-law once had a pet chameleon. we used to have fun annoying it until it turned black.<br /><br />One day he brought it to my parents' house and put it down on a tree branch while he turned his back for an instant to shoo a cat away. We never saw the chameleon again.<br /><br />End anecdote.Owen Swarthttps://www.blogger.com/profile/03023166526319714519noreply@blogger.comtag:blogger.com,1999:blog-1850379426161011153.post-48169030136062130122009-09-08T15:45:44.853+02:002009-09-08T15:45:44.853+02:00That sounds awfully convoluted. Someone bring my m...That sounds awfully convoluted. Someone bring my my Occam's razor...Anony Mousehttps://www.blogger.com/profile/08077107616686254136noreply@blogger.comtag:blogger.com,1999:blog-1850379426161011153.post-84195769366616002182009-09-08T15:31:16.094+02:002009-09-08T15:31:16.094+02:00Of course, the possibility is that females show a ...Of course, the possibility is that females show a preference for the males who can blend in best to their environment, or even that the males use that ability to fertilise them without giving the female much choice (no one ever said the natural world was nice). That would link sexual and natural selection quite nicely in a reinforcing loop which would eventually result in ghostly lizards that can walk through solid walls. I don't have any data that that is in fact the case, though.Who am I?https://www.blogger.com/profile/08395250507628641398noreply@blogger.comtag:blogger.com,1999:blog-1850379426161011153.post-89454397270017951262009-09-08T13:32:02.190+02:002009-09-08T13:32:02.190+02:00It is a Ray Ban commercial which was designed to g...It is a <a href="http://shapeandcolour.wordpress.com/2009/03/23/ray-ban-never-hide-super-chameleon/" rel="nofollow">Ray Ban commercial</a> which was designed to go viral.Jameshttps://www.blogger.com/profile/00679587695564415978noreply@blogger.comtag:blogger.com,1999:blog-1850379426161011153.post-16019720119265008722009-09-08T13:27:56.925+02:002009-09-08T13:27:56.925+02:00Hmmm... You're quite possible right. I'll ...Hmmm... You're quite possible right. I'll add a note that it might be fake. Thanks.Anony Mousehttps://www.blogger.com/profile/08077107616686254136noreply@blogger.comtag:blogger.com,1999:blog-1850379426161011153.post-19844196042203211232009-09-08T13:20:37.228+02:002009-09-08T13:20:37.228+02:00I am extremely suspicious of YouTube videos becaus...I am extremely suspicious of YouTube videos because it is easy to generate such an effect via editing software. But the real reason I think it is faked is because, as you mentioned above, certain species have been observed to match the environment (not necessarily all species can) but the chameleon appear very relaxed and unperturbed by having to walk over glasses. My question is; where is the predator threat to induce colour changing? I imagine that if a real biologist who studies chameleons were to weigh-in with an opinion it would be that the video has too many questions to be taken on face value. If it felt it should camouflage, why was it not desk-coloured at the start?Jameshttps://www.blogger.com/profile/00679587695564415978noreply@blogger.comtag:blogger.com,1999:blog-1850379426161011153.post-337059816220714782009-09-08T13:12:53.454+02:002009-09-08T13:12:53.454+02:00Thanks!
Hmmmm... why do you say it's fake? My...Thanks!<br /><br />Hmmmm... why do you say it's fake? My suspicions weren't aroused, but, then, I know little to nothing about video editing.Anony Mousehttps://www.blogger.com/profile/08077107616686254136noreply@blogger.comtag:blogger.com,1999:blog-1850379426161011153.post-81363411937935966712009-09-08T13:10:02.800+02:002009-09-08T13:10:02.800+02:00I do think that the YouTube clip is a fake, but ot...I do think that the YouTube clip is a fake, but other than that, the article is excellent. Smashed through my preconceived notions about chameleons. Thanks Michael.Jameshttps://www.blogger.com/profile/00679587695564415978noreply@blogger.com