Blanket octopus pairs are some of the undersea world’s oddest couples. What’s so startling is the size difference: Males are about the size of a walnut—less than an inch long—but some females can ...

The dozen or so species that make up Grimpoteuthis are called Dumbo octopuses because of the two large fins—one on either side of the mantle—that protrude like ears. Add in the octopus’s small size ...

Did you know octopuses are highly intelligent animals with the ability to problem-solve complex puzzles – and even change color? They have three hearts and blue blood, helping them survive in deep ...

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, ...

A few fun facts about the many-armed creatures. By Knvul Sheikh Octopuses, squids and their cephalopod cousins have haunted the human imagination for centuries. Their long, unfurling arms and ...