Humans walking on all fours is not backward evolution (ScienceDaily)

Evolution

 

“Contradicting earlier claims, ‘The Family That Walks on All Fours,’ a group of quadrupedal humans made famous by a 2006 BBC documentary, have simply adapted to their inability to walk upright and do not represent an example of backward evolution, according to new research by Liza Shapiro, an anthropologist at The University of Texas at Austin.”

Humans walking on all fours is not backward evolution — ScienceDaily.