Most of us think of the brain as a single command center that controls everything the body does. Octopuses work differently.

Recent footage captured by a diver in Port Phillip Bay, Victoria, shows an octopus apparently vanishing into the sea floor.

An octopus distributes its nervous system in a way that no vertebrate does: only about one-third of its neurons sit inside the central brain, while the remaining two-thirds are packed into the nerve ...

A research vessel operating off the coast of Brazil has recorded live footage of Haliphron atlanticus, the giant deep-sea ...