
(Wikimedia Commons public domain)
This is quite interesting, but it also strikes me (given the paucity of actual evidence) as highly speculative:
http://www.livescience.com/57203-lucy-early-human-species-was-polygynous.html
I can easily imagine several other explanations for the very limited data, and, barring additional discoveries, I don’t see how we can rule them.
Posted from Alexandria, Virginia