There are still opponents to evolution, most often found in religious circles. They are fond of claiming that evolution has never been observed by science. Well, here is a long running science experiment that has taken a strain of E. Coli bacteria through 60.000 generations. Monitoring the genetic changes in the organisms, the team running the experiment have been able to pinpoint evolutionary changes exactly. Impressive stuff!
The longest running evolutionary lab experiment is letting us watch one major evolutionary change transform an entire ecosystem