Evolution right under our noses

Evolution right under our noses
http://www.staradvertiser.com/news/20110726_Evolution_right_under_our_noses.html

"Evolution is one of life's constants. New species emerge; old ones become extinct. Environmental changes have often steered evolution in new directions. And modern cities like New York have brought particularly swift changes to the environment. European settlers cut down most of New York's original forest; towns grew and then merged into a sprawling metropolitan region. The chemical environment changed as well, as factories dumped chemical pollution into the water and soil."