Aug. 1, 2014 – A study of 1,400 ancient and modern human skulls suggests that a reduction in testosterone hormone levels accompanied the development of cooperation, complex communication and modern culture some 50,000 years ago.
The research, published in today’s issue of the journal Current Anthropology, “uses craniofacial evidence to propose that lowered testosterone levels could explain the relatively sudden origin of modern behavior about 50,000 years ago,” says University of Utah biology graduate student Robert Cieri.
The idea being – to put it as crudely as possible – that lower testosterone would lead to less bashing over the head and more dialogue.
… Read the rest“Humans are uniquely able to communicate complex thoughts and cooperate even with strangers,” Cieri says.
(This is a syndicated post. Read the original at FreeThoughtBlogs.)
