Meet your mama: Ancestor of all placental mammals revealed
Artist's rendering of the hypothetical placental ancestor, a small, insect-eating animal with a long, furry tail.
Join the discussion below, or Read more at CBS News.
#1 Feb 7, 2013
ya the mouse that roared...
Add your comments below
Find what you want!
Search Genetics Forum Now
Copyright © 2016 Topix LLC