Scientists discover secret to how baleen whales sing under water

A humpback whale – which is a type of baleen whale – near Bering Island, located off the Kamchatka Peninsula in the Bering Sea (Olga Filatova/University of Southern Denmark)

The secret to how baleen whales – the largest mammals to have ever lived – sing to each other underwater lies in their unique voice box, scientists have found.

Researchers have discovered these creatures, which include the blue whale, have unusual structures in their larynx that enables them to make sounds in a way never seen before by experts.