... kook with a leftwing agenda. It's OK to present an argument for evolution within species. It's even OK to present a theory that we all just happened from some single-cell entity that somehow grew arms, legs and a brain as it swam ashore. But to espouse total bullshit like the following is about as amateur and shallow as one claiming to be a scientist could get:

"If you look back, the thing that strikes you, if you've got any sensitivity, is that extinction is the most common phenomena," Leakey says. "Extinction is always driven by environmental change. Environmental change is always driven by climate change. Man accelerated, if not created, planet change phenomena; I think we have to recognize that the future is by no means a very rosy one."

Man is a drop in the bucket compared to the natural change phenomena which have shaped Earth since its formation. This guy is a total dumb fuck ... a total blight on the scientific community.