The peppered moth is an iconic example of Charles Darwin’s theory of evolution by natural selection. For centuries peppered moths (Biston betularia) were common in the forests around Manchester, ...

Natural selection is the process by which some organisms in a population survive and reproduce, while others do not, based on their bodies and behaviour. It is one of the processes by which species ...

The extravagant splendor of the animal kingdom can’t be explained by natural selection alone — so how did it come to be? A male Indian peafowl.Credit...Kenji Aoki for The New York Times Supported by ...