Question

what discoveries have strengthened our understanding of evoultion?

Answer 1

http://www.google.com/search?q=evolution&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA

http://www.google.com/search?q=darwin&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA