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, ...

A few small rodents like rats and mice whistle like this, but horses are the first known large mammal to have a knack for it.

Wild yellow-naped amazon parrots in Costa Rica produce structured vocal duets that follow rule-governed sequences strikingly similar to the syntax found in human language, according to new research ...