The animals’ ability to whistle while vocalizing earns them membership into a small club of creatures that can make biphonic sounds, which includes several birds species, human beat boxers, Mongolian ...

A horse's whinny is an unusually distinctive mix of sounds including both high and low frequencies. Reporting in Current Biology, researchers demonstrate how horses produce high-frequency sounds that ...

A horse's signature whinny comes from a combination of whistling and singing. The whinny is a unique combination of both high ...