'Siberian Unicorn' May Have Walked Alongside Humans

An artist's reconstruction of Elasmotherium sibiricum. (Credit: DiBgd/Wikimedia Commons) With a new discovery, paleontologists have found evidence that a Siberian "unicorn" likely walked the earth at the same time as humans. Lest visions of graceful white horses with golden, spiraled horns prance through your mind, let's first establish that this beast is anything but. Much closer to today's rhinoceroses than horses, Elasmotherium sibiricum was a gray, hulking creature with a single defining feature: a massive horn rising from its head. It was thought that these creatures died out roughly 350,000 years ago, but new evidenceindicates that the horny beasts were around much longer than that — existing as recently as 29,000 B.C.