In the wake of 2008 product scares involving melamine-tainted pet foods, lead-tainted toys, and melamine-tainted milk products, all originating in China, consumers in the U.S. understandably became ...
New research has proved the single origin of humans theory by combining studies of global genetic variations in humans with skull measurements across the world. The research represents a final blow ...
In which Darwin considers individual differences and highlights the wide degree of variability within species upon which natural selection works The natural world is full of variation. The number of ...
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