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The Clifford family was as prepared as possible to welcome Terrance the octopus. But there was one thing they missed: she was pregnant. And then she laid a whole lot of eggs.

Cephalopod Week is the annual celebration of octopi and the like.  As part of this year's celebration, Science Friday partners with GPB to salute the ocean's super-smart invertebrates on June 28.

The California two-spot octopus can edit the RNA in its brain to produce different proteins as ocean temperatures fluctuate, a new study finds.

Photographer David Liittschwager spent 12 years photographing these underwater creatures at more than 28 locations around the globe with his 500-pound studio.

Photographer David Liittschwager spent 12 years photographing these underwater creatures at more than 28 locations around the globe with his 500-pound studio.

Researchers discovered that an octopus might punch a fish when both are hunting. Although some of the thrown punches can be explained, others remain a mystery.

Scientists have modified the genes of a squid, and genetically-altered octopuses could be coming soon.