Add Yahoo as a preferred source to see more of our stories on Google. Getty Images / Mauricio Handler In the new Prime documentary series “Octopus!” actress Phoebe Waller-Bridge spends an hour and a ...

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 ...

Just like vertebrates, cephalopods — such as octopuses and squid — have elaborate brains. Neuroscientists are flocking to them for insights into how intelligence evolved.

This unassuming octopus pairs bacterial chemistry with evolutionary efficiency to deliver one of the most powerful defenses in all of the ocean.

Researchers studying a deep-sea octopus called Muusoctopus robustus have found thousands of the animals congregating at hydrothermal springs near an underwater mountain off California, raising fresh ...

The octopus is an exceptional organism with an extremely complex brain and cognitive abilities that are unique among invertebrates. So much so that in some ways it has more in common with vertebrates ...