National Geographic News, Reporting Your World Daily

Wednesday, February 10, 2010

Photo: Family Walks on All Fours, May Offer Evolution Insight, Experts Say


Email to a Friend	<< Back to Full Story

Siblings walk on all fours in rural Turkey. Three sisters and two brothers (one of whom is not shown) are almost exclusively quadrupedal, due to a genetic defect, scientists say.

Photograph courtesy BBC, from the TV documentary The Family That Walks on All Fours, airing on March 17 in the U.K. on BBC Two