(Bobtail squid in orange form). These small (less than one inch in length) squid can rapidly change color from this orange to an almost translucent white.
<a href="//commons.wikimedia.org/wiki/User:Nhobgood" title="User:Nhobgood">Nhobgood</a> Nick Hobgood
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>