Among our close animal relatives, only humans have involved and empathic fathers. Why did evolution favour the devoted dad? http://ow.ly/6vbj50kguqc pic.twitter.com/I5RDTwQNCh
0 replies
1 retweet
9 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.