Snakes lost some parts of their ancestors’ colour vision abilities tens of millions of years ago as they adapted to low-light habitats, but recent research suggests sea snakes have ‘re-evolved’ some ...

Sightings of dumbo octopuses are rare, so researchers were enthralled when one appeared on their submersible's camera on a deep-sea dive near Hawaii. More from News Sightings of dumbo octopuses ...

Heather Stewart (left) and submersible pilot Kate Wawatai (right) in the submersible A Scottish scientist has described her record-setting deep sea dive as ... so it’s "really exciting".