More than two decades after scientists identified a fossil as the world’s oldest octopus — officials now say it wasn’t one at ...

When the scientists paired two male octopuses in the same setup, the males interacted by touching arms, but they never ...

For years, this fossil seemed to tell a thrilling story. Here was an animal from more than 300 million years ago that ...

Scientific knowledge is constantly updated, revised, or reshuffled as new insights emerge. One particular fossil was thought ...

The hectocotylus is both a reproductive organ and a sensory organ, a rare combination in animals, new research suggests ...

If you've ever wondered what goes on in the minds of ocean creatures, this discovery might make your jaw drop. Scientists have found that octopuses appear to enter a sleep state that looks remarkably ...

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

To solve this puzzle, Thomas Clements, a paleontologist at the University of Leicester, and his colleagues put this supposed ...

In 2016, an octopus named Inky pulled off one of the cleanest escapes ever recorded at the National Aquarium of New Zealand ...

Scientists uncover the truth behind a well-known fossil, Pohlsepia mazonensis, showing the "world's oldest octopus" was not ...

For mating male octopuses, one limb is more important than all others. That is the third right arm or hectocotylus, which is ...