There is an inherent limit to scientific categories. They are a heuristic, not the Truth: http://ow.ly/XhZum pic.twitter.com/Ok6dTF9OS3
10:00 PM - 20 Jan 2016
0 replies
11 retweets
14 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.