Bigfoot. Sasquatch. Yeti. Skunk Ape. Whatever name, we all grew up hearing stories of the mysterious large, hairy, bipedal creatures – creatures that have been spotted in every state in the United States and on almost every continent, yet their existence cannot be verified. In the United States, Sasquatch sightings were first reported by Native Americansand persist today. Are these creatures real? What do we make of the photographs, video and audio recordings, hair samples, and tracks that have been observed and reported? And if they are real, what are they? Are they descendants of ancient apes? Or are they an unclassified species of humans?