A horse can whinny, scream, nicker, and even low growl. When a horse nickers it can mean that it likes something, or when its feeding time, they nicker to there feeders. When it screams it can mean a...
This is just their way of communicating within the herd, to predators, and to humans as well. Animals talk, just as humans do it simply is in a different way. Donkeys are used for protection for herd...
Sound is vibration of (mostly air) molecules. Humans hear sounds from about 20 Hz (=20 vibrations per second, deepest bass) to about 20.000 Hz (20.000 vibrations per sec., very high sizzling) The...