The molecular mechanics behind a classic example of evolution that dates back to Darwin’s time may soon be revealed. As soot from coal-fired factories blackened trees and buildings in 19th century ...

The green of the meadows is largely gone. The streams, devoid of swimming fish, are black and foul. Here and there, heaps of waste from coal and mines rise from the plains. The few trees that exist ...

The peppered moth as it looked before the Industrial Revolution and also now that clean-air laws have improved pollution in the United Kingdom. (Olaf Leillinger via Wikipedia) (CN) – Moths that have ...

In 1848, an amateur lepidopterist in Manchester, England, caught an all-dark form of the off-white peppered moth. Some 16 years later, by which time the dark form was outnumbering the typical light ...