How Did Chimps and Humans Diverge as a Species?

Nobody knows!! I enjoyed the article by David Perlman that we discussed in class. It makes sense to me that humans and chimps shared common ancestors. As chromosomal changes occurred, interbreeding continued but sometimes produced sterile offspring. Perhaps over time, the groups looked different and preferred different environments and that made individuals within one group attractive and compatible to each other but not to the other group. If attractive and compatible individuals continued to breed within the group that looked and lived most alike and not with the members of the other group, then the gene pools would lose some of their similarities. Eventually, predominantly sterile offspring might be produced by interbreeding, and the common ancestor's line would die out.