More than 140 children and 200 llamas, dating back to the 1400s, were discovered along the northern coast of Peru. Why is it believed this was likely an unprecedented child sacrifice?
Ancient parchments decay over time, showing purple spots. The cause appears to be a succession of microbial communities: First, purple, salt-loving microbes grow. Then, other environmental microbes invade.
Much of what we know about early man comes from Gary Larson, the genius behind The Far Side cartoon. For instance, because of him, we have anthropological insights on everything from caveman fashion to the invention of the wheel. He also depicted how, in his mind, caveman researchers discovered fire. But how and when did early man really discover fire?