A tiny blue deep-sea octopus discovered 5,800 feet below the Galápagos has been named Microeledone galapagensis The post This ...

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Camouflage isn't the only way cephalopods have evolved to change their appearance. Octopuses and other cephalopods make the fastest transformations in the animal kingdom. Here, a giant Pacific octopus ...

A distinct striped pattern on a species of octopus varies from one individual to the next, which could help researchers monitor the rare animal. Pygmy zebra octopuses (Octopus chierchiae), also known ...

A new study has shown octopuses' sleep might be more like humans than initially thought and could even include dreaming. The study found octopuses have a sleep pattern similar to REM where most ...

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 ...