(Eric VOLTO/500px/Getty Images) Biologists have long believed that having a large brain, relative to your body, might go hand ...

Octopuses, squid and cuttlefish may have evolved large brains because of the challenges posed by their environments rather ...

New research suggests that octopuses and humans may share an ancient evolutionary connection that helps explain the remarkable intelligence of cephalopods. According to findings discussed by New ...

Add Yahoo as a preferred source to see more of our stories on Google. Cuttlefish An eye-opening experiment on cephalopods reinforces why it is so important for us to not underestimate animal ...

Nautiloids—a lineage of ancient, externally-shelled cephalopods that diverged from their octopus and squid relatives over 400 million years ago—once dominated our oceans. Today, this living fossil is ...