With three hearts, blue blood, and the ability to squeeze through a space the size of their eyeballs, octopuses are said to be like aliens on Earth. The new National Geographic docuseries, "Secrets of ...

For scientist Dominic Sivitilli, a Ph.D. candidate in astrobiology and psychology at the University of Washington, the answer is under the sea. “The octopuses’ long, separate evolution toward ...

A well-loved octopus named Inky escaped recently from the National Aquarium in New Zealand. Aquarium manager Rob Yarrall says the lid to the octopus’ tank was left slightly ajar after maintenance one ...

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 ...