Medindia

X

Chance, Not Natural Selection, Gave Homo Sapiens Their Elegant Skulls

by Jayashree on  July 25, 2007 at 6:32 PM Research News   - G J E 4
Chance, Not Natural Selection, Gave Homo Sapiens Their Elegant Skulls
Chance rather than natural selection gave Homo sapiens (modern humans) their elegant skulls, according to a new study by a team of anthropologists from the University of California, Davis.
Advertisement

As part of their study, Timothy Weaver and colleagues compared 37 measurements of the skulls of various modern human populations with those of Neanderthals.

Advertisement
Comparison of the mean divergence between Homo sapiens and Neanderthals and the mean divergence among groups of modern humans, revealed that the genetic drift, in which physical features change randomly, without an environmental driving force, was responsible for the skull difference between the two.

According to Weaver, the development of culture weakened the influence of the environment upon both Neanderthals and modern humans, but ultimately the two species drifted apart genetically when they became isolated from each other.

The findings appear in the Journal of Human Evolution, reports New Scientist.

Source: ANI
JAY/C
Advertisement

Post your Comments

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
User Avatar
* Your comment can be maximum of 2500 characters
Notify me when reply is posted I agree to the terms and conditions

You May Also Like

Advertisement
View All