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 ...

The octopus is one of the world’s most amazing creatures, and nothing puts that into perspective more than the physiological differences between these fantastic sea-dwelling mollusks and the creatures ...

With their quick-change camouflage and high level of intelligence, it’s not surprising that the public and scientific experts alike are fascinated by octopuses. Their abilities to recognize faces, ...