Divining Darwin's Tree Is a Never-Ending Task
February 15, 2013
Some scientific papers brag that Darwin's universal tree of life is coming into sharper focus, but as the data increase, so do the problems.
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Human Evolution Puzzles & Problems
August 20, 2012
Recent stories on human evolution continue to illustrate ongoing problems that overturn long-held beliefs.
More Upsets for Darwin
January 17, 2012
For every hyped-up demonstration of evolution in action the media announces with gusto, there are setbacks that often do not get the splashy headlines. Here are three recent examples.