Evolution, Vol. 28, No. 4 (Dec., 1974), pp. 527-545 (19 pages) The role of interdemic selection in the evolution of altruistic characters has been the subject of considerable controversy for the past ...

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 ...

Though Charles Darwin is most famous for his voyage aboard the HMS Beagle and his theory of natural selection, the naturalist was, at heart, a botanist. Photo illustration by Smithsonian.com / Photos ...