For centuries, giant squids were treated as sea monsters and sailor myths, with only scattered clues hinting they were real. From massive tentacles attacking fishing boats to strange scars found on ...

Down in the midnight zone, where light fades to nothing, a single breath becomes a long commitment. Sperm whales slip beneath the surface and vanish into cold pressure that would crush most animals.

The discovery challenges a 370-million-year-old assumption that only vertebrates could be top ocean predators.

The ancient cephalopod, Nanaimoteuthis haggarti, appears to have been an apex predator that rivaled mosasaurs to rule prehistoric seas.

A jaw tip worn down by nearly a tenth does not sound like much until you picture what it means. Chipping, cracking, scratches and polish do not appear on their own. Something was hitting back. That is ...