> two humans differ, on average, at about 1 in 1,000 DNA base pairs (0.1%). Human genetic diversity is substantially lower than that of many other species, incl

> two humans differ, on average, at about 1 in 1,000 DNA base pairs (0.1%). Human genetic diversity is substantially lower than that of many other species, including our nearest evolutionary relative, the chimpanzee. > Groups of chimpanzees within central Africa are more different genetically than humans living on different continents > Our genetic homogeneity implies that anatomically modern humans arose relatively recently (perhaps 200,000 years ago) and that our population size was quite small at one time (perhaps 10,000 breeding individuals). > approximately 90% of genetic variation can be found within [continents], and only about 10% of genetic variation separates the populations. Calling us different species is laughable. We’re the genetic equivalent of putting 2 rabbits in a box and opening it up to find 300.