Oooh. Yeah, squid.
So we were just talking a little bit about the ways that cephalopods can change color using their chromatophore organs,
which are elastic pigment sacks in the skin and they can retract and extend the muscles surrounding those sacks of pigment and
cause the pigment to extend or retract itself and you'll either see the pinpoint of color or you'll see it expanded
and that's how they are getting this reddish color, from reddish to pale and back again rapidly.
The reason that cephalopods use color changing is for communication.
In reproductive behavior, they'll have particular color patterns that males indicate to females that they're interested in mating and
the females communicate back to them that they are or are not.
The other major reason that cephalopods use color changing in their skin is as a form of camouflage.
Wow. That's beautiful.