Crazy Chimps Fighting at the LA Zoo (with a big stick)!

This is a video of a group of chimps fighting very aggressively, At one point in the video one chimp gets hold of a stick and start swinging it around. Its very sad to see chimps fight each other like this But a major new study of warfare in chimpanzees finds that lethal aggression can be evolutionarily beneficial in that species, rewarding the winners with food, mates, and the opportunity to pass along their genes. so that can be one reason it's normal for them to fight.