Came across a really cool experiment done by a university in my own state (Michigan State University) and thought it was pretty neat.
http://news.harvard.edu/gazette/story/2 ... ok-general
To summarize, basically this biologist has been breeding a form of bacteria (E. Coli) for about 25 years and thus has gone through almost 60,000 generations. Around the 20,000 generation a new "strain" of bacteria started showing very different signs than its predecessors...it had gained the ability, previously unseen, to use a compound called citrate. To create comparisons, the researchers froze ancestral strains in order to be able to observe them (E. Coli still remains viable in these temperatures). Can't wait to get some of this peer reviewed and see similar experiments done over the course of my life time!