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 ...

When we think of sea animals, we usually picture dolphins, whales, or sharks. But there’s one sea creature that’s quietly amazing– the octopus. With its soft body, eight bendy arms, and smart ...