A scampering, hypothetical ancestor causes an evolutionary stir

What's cute and furry and has a name only a paleontologist could love?



via L.A. Times - Science http://feeds.latimes.com/~r/latimes/news/science/~3/UcA_5uKWCNI/la-sci-sn-placental-mammal-ancestor-20130207,0,5058943.story