Kids Costumes Loaded With Class

Fascinating. The cuttlefish is mimicking a nudibranch, which is a sea slug. The movements, even down to the swishing the tentacles like the nudibranch's gills, is beautifully accurate.

Sea slugs are brightly colored (often with brilliant contrasts of blue and yellow) because they too are poisonous.

Watchmen's Rorschach !

@ChrisfromFrance- That was the first thing that came to my mind, too.

It's cute in a Cthulian sort of way.