The Underwater Photographer of the Year competition returns with 7,000 submissions. Spanish photographer Álvaro Herrero wins ...

The Underwater Photographer of the Year contest highlights compelling underwater images of wrecked ships and planes.

A stunning photograph of a mother humpback whale and her newborn calf win this year's Underwater Photographer of the Year ...

The species' voracious appetite has come in handy as a cleaning mechanism for lazy wizards, liches, and other dungeon ...

Arctic daily sea ice extent continued to hover near record daily lows in January, with the ice edge well northward of its long-term average position in most areas. In contrast to the cold conditions ...