On World Octopus Day, researchers are revealing how this blue-blooded marvel could unlock breakthroughs in robotics, medicine, and even our understanding of consciousness. On October 8, World Octopus ...

A 300-million-year-old fossil that earned a Guiness World Record in 2015 as the world’s oldest octopus, has now been reclassified after new research published in Proceedings of the Royal Society B.

LONDON (AP) — A 300-million-year-old tentacled sea creature has lost its crown as the world’s oldest octopus, after scientists found evidence that it’s not an octopus at all. Newly published research ...

A famous “oldest octopus” fossil has been exposed as a case of mistaken identity. Advanced imaging revealed hidden teeth showing it was actually related to a nautilus, not an octopus. The confusion ...

Scientists have found evidence that a 300-million-year-old sea creature previously thought to be the world's oldest octopus ...