When Neil and I looked at the fossil record, we noticed that all the features that enable us to throw well show up by two million years ago in the species Homo erectus.62 Given that humans also started hunting around then, throwing capability was probably selected to help put meat on the table. It would be naive, however, not to suppose that early hominins sometimes also threw spears or rocks at each other as well. I suspect H. erectus children spent hour upon hour practicing their throwing skills and developing upper-body strength. All over the planet,

