First reported 12 hours ago -
Updated 12 hours ago -
Image: The skull of an adult Homo heidelbergensis, found in Sima de los Huesos, near Burgos, Spain in 1992. (CESAR MANSO/AFP/)Humans are clearly distinct from the rest of the animal kingdom yet, scientifically speaking, it's difficult to say exactly why. ...
[Published ABC Online - 12 hours ago]