Intriguing and incredibly unique, octopuses are cephalopods with three hearts that pump blue blood throughout their eight arms. These intelligent sea creatures have multiple brains — nine, to be exact ...

Octopuses are perhaps the most unusual creatures to have ever inhabited the ocean. Their soft body, eight arms, and high level of intelligence make th.

Learn how specialized sensory cells and 500 million neurons help octopuses recognize mates and reproduce through touch alone.

Octopuses break so many biological expectations that scientists still struggle to explain how they ended up this way through normal evolution. From how their brains work to how their bodies heal, ...