160 million years ago, ancestors of cuttlefish were already using theā€¦

Researchers have shown that ink sacs from a cephalopod that lived 160-million years ago still contain traces of the pigment melanin. That's an impressive find in its own right, but what really floored the scientists was how familiar these pigments looked. » 5/22/12 9:25am 5/22/12 9:25am