The top predator prowling the seas during the age of the dinosaurs 100 million years ago may have been the octopus. New analyses of fossilized jaws reveal that massive, kraken-like octopuses once ...

More than two decades after scientists identified a fossil as the world’s oldest octopus — officials now say it wasn’t one at all. A recent study published in the journal Proceedings of the Royal ...

Pohlsepia mazonensis, a visually underwhelming fossil from Illinois, fundamentally broke our understanding of cephalopod evolution. Described in 2000 and hailed as the oldest known octopus in the ...

LONDON — 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 prehistoric fossil previously thought to belong to the world's oldest octopus has been reclassified as something else, after scientists discovered the remains actually belonged to a different type ...

A 300‑million‑year‑old fossil, previously thought to be the remains of the world's oldest octopus, has been identified as a different animal. Using the latest technology to search inside the fossil, ...

An artist's impression of what the animal would have looked like A 300‑million‑year‑old fossil, previously thought to be the remains of the world's oldest octopus, has been identified as a different ...

In 2000, researchers described an odd fossil found not far from Chicago. It had a round body, finlike structures on one end and a tangle of arms. The fossil was classified as an octopus and named ...

A famous 300-million-year-old fossil that was thought to be the world's oldest octopus—even featuring in the Guinness Book of Records—has turned out to be something else altogether. In what amounts to ...

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 ...

When octopuses mate, the male keeps the female quite literally at arm’s length. For the act, the male has a special arm called a hectocotylus, which it uses to deposit a sack of sperm inside the ...

If you liked this story, share it with other people. The photo offers a rare glimpse into the early life of the species: The black dots inside each egg are the developing eyes of the embryos, ...