Octopuses have three hearts, each one crucial to maintaining the robust blood pressure that allows them to be active hunters ...

Octopuses have blue blood, three hearts and a doughnut-shaped brain. But these aren't even the most unusual things about them! Known for their otherworldly look and remarkable intelligence, octopuses ...

Contorting, shape-shifting, camouflaging—often all at once—octopuses are as diverse as they are fascinating. Here six octopuses show their stuff. You’re sitting on the seabed, just off the ...

In 1990, diver Arcadio Rodaniche’s findings about a highly social octopus were dismissed. Decades later, his work was ...

Not only does it turn out that, nope, the tide doesn’t actually go in and out, but apparently octopuses don’t have tentacles, either. If you’re thinking, “But isn’t that sort of their ...

Octopuses have a large nervous system, with the average octopus having about 500 million neurons or brain cells. That puts it in the same “brain range” as smaller mammals such as dogs.

California lawmakers have approved a bill that would make it illegal to farm octopuses in state waters or on land, as well as ...

Blanket octopuses get their name from sheets of webbing that stretch between some of their arms. When threatened, they stretch their arms out, creating a blanket-like silhouette meant to frighten ...

"The whole of Paris was full of octopuses, octopus hats, everybody was writing parodies of it, making jokes and cartoons," said Dinah Bott, chairwoman of The Victor Hugo in Guernsey Society.

That's if he's in a good mood. Octopuses live to be about four - so, at one year old, she says that he's the equivalent of a teenager. "He definitely exhibits what you'd expect a teenager to be ...

The Newport Aquarium has opened a new fall exhibit called Underwater Pumpkin Glow for the upcoming season. The attraction ...

Climate change and a range of other human impacts are putting marine animals at risk of extinction—even those living in ...