This video explains that much evidence shows that our ancestors were hunted by animals, such as the 2.8 million year old “Taung Child” hominin that was discovered in southern Africa in 1924 that has evidence showing that it was likely hunted and killed by predators.  From the video page: “Not too long ago, our early human ancestors were under constant threat of attack from predators.  And it turns out that this difficult chapter in our history may be responsible for the adaptations that allowed us to become so successful.”