VIDEO: The Secret Language of Whales

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Advance understanding of whale communication

March 31, 2015 Updated 01:44 BST

We all know that whales navigate and communicate through sound. But scientists are still trying to understand how and why some whales various auditory systems developed.

The Smithsonian Institution in Washington researchers believe that they have found a clue - it all depends on the movements of the jaw and are used depends whales to catch food methods. And as reported by Jane O'Brien, the results are important for nature conservation.

Filmed by Alan McGreevy. Written by Bill McKenna

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