Few animals put on a show quite like a cuttlefish. In the space of a heartbeat, its skin can shift from mottled sand to inky black, then send rippling bands of color racing down its body like light ...
Real Science on MSN
Watch this cuttlefish change 20 colors in seconds before your eyes
The cuttlefish may look harmless, but it's one of the most advanced hunters in the ocean. With more than 120 species, instant camouflage, W-shaped pupils, and one of the largest brains of any ...
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