Cephalopods are very strange — but why? You can find even that out here! Also, learn about cephalopod ancestors. Also, in Cephalopods in the news, learn about how octopuses are being studied for artificial limb research.

Octopuses and squid can spray ink, but why? You can find out here! Also learn about other features of the ink sac and gland. Also, in Cephalopods in the news, learn about Heidi the octopus, who changed colors in her sleep.

Squid have suction cups on their arms. But why is that so? Find out here! Also learn more about their tentacles and why they are so reliable. Also, in Cephalopods in the news, learn about a bioluminescent squid.

All cephalopods, especially squid, are soft-bodied. They also have hard insides. But why? Find out! You can also learn about exterior and interior features of the squid. Also, in Cephalopods in the news, learn about a giant squid that was captured on camera.

Existent monsters! Some octopuses have 9 brains, but why? Well, you can find out here! You can also learn about the octopus nervous system and senses. Also, in Cephalopods in the news, learn about Otto the octopus, who caused a power outage in an aquarium.

The alien! Ever wanted to know why octopuses have 3 hearts? Well, you can find out here! You can also learn about other features of octopus health and bodies. Also, in the brand-new Cephalopods in the news, learn about Inky the octopus, who escaped from a New Zealand aquarium.

Ever wondered how octopuses change color? Well, you can find out here! You can also find out about other hiding techniques.