So, in the 4-8 million years since <i>H. sapiens</i> began to diverge from what would become chimpanzees and gorillas, we gained the ability to walk and run, use tools, and use language. The females of our species stopped having estrus, the males' penises got bigger, we lost an amazing amount of hair, gained a fair bit of height, domesticated a bunch of animals and crops, and started the long process of irreversibly modifying our environment.<p>Despite this massive divergence from a common genetic ancestor almost 20-40 times longer ago than our species has even existed, folks still want to base what it means to be a human on what it means to be a gorilla or a chimpanzee.<p>To make an easier point: do you think you could be typing on a keyboard designed and manufactured by humans using a computer designed and manufactured by humans which communicates with other computers using protocols designed, implemented, agreed upon, and re-implemented by humans in order to use a service provided by a human so that humans could meet and talk about a tiny slice of the things humans meet and talk about <i>if humans weren't embarrassingly social and cooperative?</i>