There is more genetic variation in a few troupes of wild chimpanzees than in the entire human population. Lack of genetic variation is never good for… - Henry Gee

It's evident that Darwin saw evolution not as progressive or improving, but as an activity that happens moment by moment. From this it is clear that evolution has no plan. It has neither memory nor foresight. No vestige of cosmic strivings from some remote beginning; no prospect of revelatory culmination in some transcendent end.

To take a line of fossils and claim that they represent a lineage is not a scientific hypothesis that can be tested, but an assertion that carries the same validity as a bedtime story—amusing, perhaps even instructive, but not scientific.

The cause of extinction is usually a delayed reaction to habitat loss. ...H. sapiens might ...already be a dead species walking.