We humans and chimpanzees had a common ancestor from which we seem to diverge. So that indicates that the common ancestor we had at some point gave birth to an offspring which would have slightly different features or mutations. So at some point in history of the common ancestor of humans and chimpanzees there might have been the first human as there would be the first chimpanzee which was born due to mutations in our common ancestors. So is there any way to know whether that was male or female? What are the theories about it?