Tag: migration


March 11, 2013

Our Neanderthal Cousins

Neanderthal

There’s much to recommend in Carl Zimmer’s profile of David Reich in Discovery Magazine, not least of which are details on our favorite extinct human cousins, Neanderthals. While Neanderthals are the rock stars of the piece, Zimmer also gives a good primer on human evolution, ancient migration out of [...]

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August 4, 2008

The Origins of Pastoralism in Africa: What do the Genes Say

maasihut_sat

This guest post is by Brenna Henn, a doctoral student in Stanford University's Department of Anthropology and a 23andMe consultant. Brenna studies human evolution using genetic information. Her interests include the origin of modern humans, migration patterns among African groups, and genetic models of [...]

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June 20, 2008

A Genetic Look at “Guns, Germs and Steel”

Caption: Gradients of genetic diversity are shown from dark to light colors running roughly northwest to southeast down the map of the Americas above, reflecting human migration.  Ramachandran thinks that the major axis of the continent is tilted; Diamond asserts that the axis runs north to south. Image from PLoS Genetics: Wang et al, 2007 (http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.0030185).

What can we learn from studying how variations of human genes are spread out around the world? A lot, said population geneticist and Harvard junior fellow Sohini Ramachandran, who spoke at 23andMe this week. Ramachandran focused on how genes spread from one continent to another, and how they vary within [...]

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May 23, 2008

Peopling of the Americas (Times Two)

The 23andMe Blog

Just when you thought everything was starting to make sense – new genetic research on the peopling of the Americas throws us a curve. There has been plenty of research in both genetics and archaeology recently trying to figure out how the New World was colonized. Was it by boat or via the frozen [...]

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