The octopus is one of the coolest animals in the sea. For starters, they are invertebrates. That means they don’t have backbones like humans, lions, turtles, and birds. That may sound unusual, but ...

It's not all that unusual to see octopus on a restaurant menu. But an octopus as a family pet? Cameron Clifford of Edmond, Okla. says his 9-year-old son Cal is a huge fan of the eight-legged creatures ...

For its distinctive way of defending its boundaries, consider Octopus tetricus, aka the gloomy octopus. If another creature gets too close, this octopus will respond by throwing things, according to a ...

Octopuses, which are remarkably intelligent marine creatures, generally avoid contact with other animals and are thought to live solitary lives. However, the situation is quite different 50 feet below ...