In the past it was thought that there were 24 chromosomes in the human gene but there are actually 23. Apes have 24 because the second human chromosome is a fusion of two ape chromosomes. Because of this relationship between the ape species and human species many religious figures believe the human soul is near the centromere of chromosome 2. The human species is thought the be a success because we have dominated over other species over time. We were able to colonize land and domesticate animals. Humans and chimpanzees are genetically 98% the same, although the split between the two is unclear, it is clear that the chimpanzee population also split. One developed a genetic mutation with the fusion of two chromosomes that prevented the two populations from breeding to form a new species that eventually became the human species. Matt Ridley believes that the differences between species are in the genes, they don't control behavior but they do play a part.
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