The distinctive sound horses produce when they whinny is created by combining low and high pitch sounds together, like ...

An equine makes the low-pitched part of its whinny by vibrating its vocal cords—similar to how humans speak and sing—and the high-pitched part by whistling ...

A horse's signature whinny comes from a combination of whistling and singing.

The ability to make two distinct sounds at once is shared with human beat boxers and throat singers. The horse whinny, or neigh, has been a familiar sound at least since the animal was domesticated, ...

Horses use their larynx to make two sounds simultaneously, so they are effectively singing and whistling at the same time ...

Horses whinny to find new friends, greet old ones and celebrate happy moments, like feeding time. But how exactly they produce the distinctive sound - also called a neigh - has long eluded scientists.