Some octopuses that lived over 72 million years ago were as long as whales. These huge predators may have been the largest ...

"It's a huge gap. And so that big gap got researchers sort of questioning, ‘Is this thing actually an octopus?'" ...

The "enormous" creatures were active carnivores who routinely crushed hard shells and bones with their powerful bites.

A 300-million-year-old tentacled sea creature has lost its crown as the world’s oldest octopus, after scientists found ...

The ammonoids, an extinct subclass of cephalopods, offer a remarkable window into the evolutionary innovations of marine life. Their coiled, chambered shells and intricate suture patterns record a ...