In the 1950s, Bernard Kettlewell tested the idea experimentally by marking several hundred peppered moths (typicals as well as melanics) and releasing them onto tree trunks in a polluted woodland near ...

In the peppered moth population of Great Britain there is ... light to dark forms in industrial areas is called industrial melanism. Note that this change was not due to pollution making the ...

Camera traps in a forest have caught video of two all-black wolves. Now scientists are investigating where they might have ...

View Full Profile. Learn about our Editorial Policies. During the Industrial Revolution, the light, speckled British peppered moth stood out against the soot-darkened trees and city walls. This stark ...