A species of houndshark called Mustelus lenticulatus makes sharp clicking noises when handled. Until now, sharks as a group ...

Now all animals with ears hear sound, which is made up of invisible waves that create vibrations in the air. High-pitched sounds make fast vibrations, and low-pitched sounds make slower vibrations.

But mimicking the sounds of animals isn't as easy as woofing or purring. [Marko purring] Though he can do that, too. Picking the right sounds involves carefully examining both objects and surfaces.

There's four different animals, each inspiring their very own ... Wave your arm imitating a trunk in front of you. Now, use all those sounds and actions to build up a rhythm.