We've always been told that chameleons change color to camouflage themselves and blend in with their background. Well, according to scientists at the University of Melbourne, Australia, that was wrong: chameleons evolved the ability to change colors to make themselves more noticeable to other chameleons.
As chameleons have a different visual system to humans, they have a fourth type of cone which is ultra-violet (UV) sensitive, the researchers had to first measure what the chameleons were actually seeing.
The Melbourne-based researcher explained: "We measured colour with a spectrometer, which measures both the UV and visual colour range, and combined this with information on the chameleon visual system to model chameleon colour perception." [...]
Co-author Dr Devi Stuart-Fox, from The University of Melbourne, Australia, told BBC News: "[Our research] suggests that chameleons evolved colour change for signalling, to fend off rivals or attract a mate, and not so they could match a greater variety of backgrounds."
Comments (3)
Schroendinger Bet XL ,
Craig Clayton
Guessing it is for a rimmed cartridge, but i couldn’t determine the cartridge size or the caliber..
i wonder if it uses a moving barrel or a moving chamber...
I am really looking forward to see the whole gun, or the fact that i misinterpreted all the components of this technical device...
Battle Damage
size M black
Busted - XL
Wrong guess: It's a ghostbusters device to send the unspeakable ones (i.e. Michael Bolton) to R'lyeh.
This is not a drill (XXL)
Large myth busters busted.
I Heart Maths (UK) 3XL
I Make My Own Dance Moves, 2xl
I make my own dance moves Xlarge
Schroendinger Bet XL
Craig Clayton
Schroendinger bet Xl
Craig Clayton
Schroendinger Bet XL
Craig Clayton
Also, Craig is right, top bit is a bolt, bottom bit holds a spool of line, use it to launch out said line.
The origami of the species XL
Lesser of Two Weevils Large
..look out schrodinger's cat...
Unicorn Poop Large, Navy
Busted! T-Shirt Medium (please disregard previous post, as I am an idiot)
Idiot proof, med.
Battle Damage, m.
Seqret Cat XL
Craig Clayton
XL Twaggies logo
A.S.A.P.F.
large
Look Out Schrodinger's Cat, It's a Trap!
Large
PB Jellyfish, Ladies M, Serene Green