Stories by Theodosius Dobzhansky

A debatable account of the origin of races

Man still evolves by natural selection for his environment, but it is now an environment largely of his own making. Moreover, he may be changing the environment faster than he can change biologically

In tropical forests certain tree species climb toward the sun on the trunks of others and choke them to death. These strange plants illustrate a central problem in the theory of evolution

The organized study of the mechanism of heredity evolution began only with the 20th century and rediscovery of the lost work of Gregor Mendel

The rich variety of living and dead species of plants and animals is the result of subtle interplay between the hereditary mechanism and a diversified environment,