Ocean

In a series of striking photographs, Marcia Riederer captures the elegance and curiosity of the elusive dwarf minke whale.

All-female species have been long thought of as evolutionary dead ends – but one fish has defied the odds to live without males, revealing new clues to how genomes stay healthy.

A trove of snapshots from a 1960s diving expedition reveals stunning glimpses of Jamaica's vibrant ecosystems of the past. This is transforming our vision of what coral reefs can be.

On a misty morning in December, two photographers captured the images of 304 individual humpbacks – the highest number of large whales ever identified in a single day.

A new hiking trail will soon allow travellers to walk around England's entire coast – but a strange paradox means no one knows exactly how long it is.

From Fiji's kaleidoscopic reefs to shark-packed passes in French Polynesia, these six destinations offer some of the world's most exhilarating underwater experiences.

From bone-eating snot-flowers to snowboarding scale worms, when a whale dies it becomes a colossal island of nutrients – attracting weird and wonderful creatures to feast.