Chameleon inspires 'smart skin' that changes color in the sun

A chameleon can alter the color of its skin so it either blends into the background to hide or stands out to defend its territory and attract a mate. The chameleon makes this trick look easy, using photonic crystals in its ...

Squid skin could be the solution to camouflage material

Cephalopods—which include octopuses, squid, and cuttlefish—are masters of disguise. They can camouflage to precisely match their surroundings in a matter of seconds, and no scientist has quite been able to replicate the ...

How urban seasnakes lost their stripes

Researchers studying turtle-headed seasnakes living on coral reefs in the Indo-Pacific noticed something unusual about the snakes' color patterns: seasnakes living in more pristine parts of the reef were decorated with black-and-white ...

Video: The chemistry of redheads

St. Patrick's Day evokes thoughts of all things often associated with the Irish—including red hair. Chemically speaking, what sets redheads apart from the crowd is pigmentation—specifically melanins.

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