Being a team player could have kept you from being eaten eons ago:
New computer simulations lend further support the notion that cooperation helped early humans escape becoming prey for other animals, researchers report.
The work suggests that teamwork could have given Australopithecus – a group of hominids closely related to humans – an important advantage over their cousins Paranthropus, contributing to their extinction.
.... there is hard evidence that early humans were preyed upon, such as holes in skulls that match the size of sabre-toothed cat's fangs. "Then we find that, especially in South Africa, a lot of the fossils are in these big piles in caves where predators dragged and dropped them," [say researchers]