Cities create accidental experiments in plant, animal evolution
From clover to lizards, a city’s nonhuman residents evolve in human-scale time
GOING TO TOWN After generations of city life, widespread tropical lizards Anolis cristatellus and white clover are not quite the same the same as their country cousins, though not always in the way scientists expect.
Geoff Gallice/Wikimedia Commons (CC BY 2.0); Frank Vincent/Wikimedia Commons (CC BY-SA 3.0 migrated)