Facial expressions 'hereditary'
The faces we pull when we are happy, sad or angry may be passed from generation to generation, according to researchers.
The faces we pull when we are happy, sad or angry may be passed from generation to generation, according to researchers.
Comments
by John Nack on 2006-10-17 16:26:46
by aral on 2006-10-18 00:12:55
by peter on 2008-03-11 23:26:00