Since the 1960s, a strange, repetitious quacking noise called a “bio-duck,” which can frequently be heard in the Southern ...

Whales and dolphins are extremely good at ... So when I’m swimming, as well as hearing the natural underwater sounds from the ...

Yes, but: The complexities of sound traveling underwater suggested whales' ability to communicate might not be quite as ...

Read more about sperm whales: http://j.mp/sOSais Watch underwater footage of the mammal and hear its strange clicking sounds that are crucial to their survival 5 ...

Elemans said the animals adapted their voice boxes over tens of millions of years to make sounds underwater. Hopeful signs for declining grey whale population Unlike humans and other mammals ...

"Studying large whales is extremely challenging at the best of times, but trying to uncover how they produce sound when you may not even be able to see them underwater while vocalising is an added ...

It has also been proposed that human-made underwater sounds could be a contributory factor in mass whale strandings, such as the one seen in Scotland in July, when 77 pilot whales died on a beach.

Sound travels far and fast underwater – and that includes the ... My favourite sequence for its soundtrack is when we dive with a sperm whale mother, who is communicating with her baby, before ...

For underwater photographer Brian Skerry ... photographing sperm whales off the coast of Dominica. The whales are bothered by the sound of scuba systems, so Skerry free dives.