Long before they were social symbols, smiles, tears and laughter served adaptive purposes: http://ow.ly/ZWqzt pic.twitter.com/sfEnivBWZC
7:01 AM - 27 Mar 2016
0 replies
6 retweets
22 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.