Dark Matter Monsters: Cryptids, Ball Lightning, and the Science of Secret Lifeforms

If Bigfoot is an Ancient Primate or an Undiscovered Human, why is the Creature Seen Around Balls of Light and Other Paranormal Phenomena?

Thousands of people have witnessed bigfoot and other strange creatures for decades in North America and worldwide. In many cases, these encounters have been followed up and documented, including physical evidence by trained investigators. Is bigfoot an undiscovered primate, a relic hominid, or an alien species? And why are so many encounters also filled w...