Lions may hold the crown today, but in ancient times, it was the saber-tooth cats that reigned supreme in the Americas. Recent fossil discoveries are shedding new light on the brutal and mysterious existence of these fierce predators. What were their lives really like, and how did they rise to dominate their world? Find the full documentary: curiositystream.com/video/3144 Breakthrough, Saber Tooth Brawl Lions may be known as the kings of the jungle, but it was saber-tooth cats that ruled over the Americas. New fossil evidence is shining a light on the violent lives of these mysterious species. #CuriosityStream #Lions #SaberTooth