Moreover, the investigation of the 11th specimen demonstrates that the known specimens span a remarkable range of anatomical variation. (sciencedaily.com)
The children's bodies bore no traces of physical trauma, except for minute anatomical variations (alleged «microtrauma»), later demonstrated to be utterly normal. (firstthings.com)
«Darwin recognised that anatomical variation within a biological species is normal,» he says. (newscientist.com)