dolphins

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Most of us start to tire after about half a day without any sleep. Staying awake for five in a row would be extremely difficult and even if you could manage it, you’d be a physical and mental wreck by the end. But not all animals suffer from the same problem. A dolphin can stay…

Cuttlefish are intelligent animals that can hide from predators by changing colour and texture, and squirting out a smokescreen of black ink. But amazing though cuttlefish are, their defences mean nothing against one of the most intelligent hunters in the ocean – the bottlenose dolphin. Julian Finn, Tom Tregenza and Mark Norman (the trio who…

Sponging dolphins keep it in the family

In Shark Bay, off the Western coast of Australia, a unique population of bottlenose dolphins have a unusual trick up their flippers. Some of the females have learned to use sponges in their search for food, holding them on the ends of their snouts as they rummage through the ocean floor. To Janet Mann at…

You might not be that impressed to receive a clump of grass or branches on a first date, but a boto dolphin might think differently. A new study suggests that these Amazonian dolphins wave bits of flotsam to attract mates. The boto is a freshwater river dolphin that swims through the currents of the Amazon…