Deep Look
You're Not Hallucinating. That's Just Squid Skin.
Octopuses and cuttlefish are masters of underwater camouflage.
Octopuses and cuttlefish are masters of underwater camouflage.
Chameleons don't change color to match their environment; it's just the opposite.
When it comes to spotting prey, sharks and rays have a sense beyond sight and smell.
How does a group of animals - or cells - work together when no one's in charge?
Some corals look like undersea gardens, gently blowing in the breeze.