Squids have a an extremely complex,
interesting sex life.
Here you see a male and a female.
The male, on the left, has been
fighting off other males
to pair with the female, and now
he's showing a dual pattern.
He shows courtship and love on
her side, fighting on the other.
Watch him when she shifts places --
and you see that he has fluidly
changed the love-courtship pattern
to the side of the female.
So this kind of dual
signaling simultaneously
with a changing behavioral context
is really extraordinary.
It takes a lot of brain power.