I enjoy visiting TED.com and it makes me feel I am not wasting my time working at home and surfing the net. Ted.com has to be the most educating website I have ever come across. I have just found a video of anthropologist Nina Jablonski speaking about skin pigmentation and the evolution of races. This is a definite watch so please take your time to watch this video:
more about "The Evolution of Skin Color in Humans", posted with vodpod
