An iridescent blanket octopus shows off its rainbow-colored cape in a rare new video that will leave you awe-struck.

Scuba divers and snorkelers usually have a good idea of what to expect in the open ocean, but every now and then, something ...

Cuttlefish flash patterns and colors on their skin to communicate, and they may wave their tentacles to send visual and ...

Opalescent baby squid have "midwives" to bring them into the world. Squid eggs wait in gelatinous orbs to hatch. Capitella ...