With a predator beneath you, looking up to see your shadow,
It is good to be transparent, so the light just passes through
But a nearby light’s reflection makes you sparkle like a diamond,
So a darker pigmentation is the better thing to do.
Those are two competing strategies, and mutually exclusive
Each has fatal flaws, so choosing “clear or solid?” is a bitch;
But now Japatella heathi and Onychoteuthis banksii
Have evolved the best of both worlds—in an instant, they can switch!
Story, after the jump: [Read more...]