Shrimp That See in 12 Colors

...and can detect polarized light across an entire spectrum.

Just why the mantis shrimp needs such a rarefied level of vision is unclear, although researchers suspect it is to do with food and sex.

Food and sex? Big surprise. Everything in evolution is about food and sex. Also, scientists don't usually get enough of either, so those topics are always front-of-mind.

(via @Templesmith)