Underwater footage from May 12 captured the fascinating moment a giant cuttlefish changed colors as a diver approached off ...

The skin of a cuttlefish shows its emotional state. The skin of a cuttlefish shows its emotional state. Its color may change when meeting a potential mate or a rival. But what happens when a male ...

This article was originally featured on Hakai Magazine, an online publication about science and society in coastal ecosystems. Read more stories like this at hakaimagazine.com. A person might wear ...

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 ...