Chimpanzees are extremely dangerous when angry and can easily overpower a human. It took a long time for humanity to get to the point of being able to fight off

Chimpanzees are extremely dangerous when angry and can easily overpower a human. It took a long time for humanity to get to the point of being able to fight off a troop of wild chimps and a lot of the effort required wasn't simply being smarter, it involved a lot of time consuming building and risk taking.