The kraken: a giant squid or octopus of myth, seems to have swam in the Cretaceous oceans, a Japanese study shows.

The massive invertebrates may have been top predators, according to an analysis of their fossilized jaws. The work suggests ...

A newly discovered prehistoric mammal may hold clues to how life survived the dinosaur-killing extinction. The tiny species, ...

Squid and cuttlefish, though often confused, diverged around 100 million years ago. These "ten-limbed" cephalopods survived ...

During the same period, dinosaurs such as T rex, Triceratops, and Velociraptor dominated life on land, while these octopuses ...