World of Mysteries: On the Trail of Bigfoot

Is there an unknown beast lurking in the forests of the American Northwest? Thousands of people say they've seen it. It is part ape, part man, almost nine feet tall, covered head to foot in thick dark hair, and it walks on two legs. It's sometimes called Sasquatch, a Native American word, one of more than eighty names they have for such a creature. More commonly it's known as Bigfoot.