“I know she’s there,” says Dennis. We’re standing on a grassy ridge above a tree-lined watercourse, squinting through ...

This 2cm-long speed demon can race up to 2.5m (or 125 body lengths) per second. If it were human-sized, that would equate to ...

Sea snakes have some of the deadliest venom around (with the Dubois’ sea snake above thought to top the list), containing powerful toxins that can cause paralysis, including of the diaphragm, ...

Wondering if fish sleep? It's not a simple yes or no answer says Stuart Blackman after weighing up the evidence.

In a process called autophagy, the bird consumes a large portion of its internal organs. Up to a quarter of certain vitals, including its kidneys, liver, gizzard and intestine, is broken down. This ...

The discovery suggests the Atacama Desert was once far wetter than it is today – challenging the idea it has remained ...

Sharks are able to renew their teeth because they are set into the gum, rather than into the bone (as humans' are). An endless supply of of deadly, razor sharp, teeth is an important adaptation - ...

Stórhöfði, meaning ‘Great Cape’, lies at the southern tip of Heimaey and is one of the island’s best-known puffin-watching ...

The findings highlight how animals can influence landscapes on a much larger scale than their size might suggest. Sand ...

A bizarre deep-sea fish that looks part fish, part prawn has been filmed walking backwards for the first time, revealing an ...

With talons as long as the claws of a grizzly bear and legs as thick as the wrists of a small child, the harpy eagle surely justifies a nomination as the world’s most powerful eagle. They are one of ...

Scientists have used decades-long imaging techniques to throw new light on the longevity of right whales, with surprising ...