Hunter-gatherer past shows our fragile #bones result from inactivity since #invention of #farmingpic.twitter.com/30b7hd8Dd4
5:00 PM - 25 Dec 2014
0 replies
7 retweets
4 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.