5 Strange Animal Sounds *Including Bigfoot's Scream* | The Proof Is Out There | History

Transcript

this story goes all the way back to California in 1971 Al Barry and his friend Ron Morehead have come to the Sierra Nevada melon to investigate mysterious noises reported by a bewildered group of hunters what their microphone picks up becomes the first of a series of recordings now known as the Sierra sounds the recordings capture a series of guttu... Read More