Love for your pet, the Earth, homeland, God: these are all triggered by a 500-million-year-old, nine-amino-acid molecule that evolved to help bonding between mother and babyhttp://ow.ly/5T5c50yl9wN
0 replies
12 retweets
42 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.