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 ...

Octopuses have a way of making familiar rules feel optional. They live on Earth but behave like visitors with a different instruction manual. Scientists study them for answers about intelligence and ...

At up to 2m in length, female blanket octopuses are at least ten thousand times heavier than the tiny 2cm-long males, which ...

Did you know octopuses are highly intelligent animals with the ability to problem-solve complex puzzles – and even change color? They have three hearts and blue blood, helping them survive in deep ...

Octopus (Octopus vulgaris) tentacles up close and personal. Octopus tentacles have rows of powerful suckers that can 'taste' the water and form water-tight seals underwater, allowing them to grasp ...

Among the smartest animals on Earth, octopuses are unique for being utterly weird in their evolutionary path to developing those smarts. Philosopher Peter Godfrey-Smith has called the octopus the ...

Our last common ancestor with the octopus existed more than 500 million years ago. So why is it that they seem to show such peculiar similarities with humans, while at the same time appearing so alien ...

Jenny Evans / Getty Images Octopuses are capable of sophisticated tasks, from solving puzzles to decorating their dens to remembering people's faces. So when a company in Spain announced that it ...

A famous 300-million-year-old fossil that was thought to be the world's oldest octopus—even featuring in the Guinness Book of ...

Octopuses break so many biological expectations that scientists still struggle to explain how they ended up this way through normal evolution. From how their brains work to how their bodies heal, ...