Helping Schools to Teach Evolution

The noted geneticist Theodosius Dobzhansky once said that "nothing in biology makes sense except in the light of evolution." Most contemporary biologists would agree. We cannot answer the central questions about life -- Why do so many species exist? Why do a few fundamental principles of biochemistry affect most of that extraordinarily diverse range of organisms? How do sudden changes, such as bacteria's resistance to drugs, spread rapidly through a population? -- without referring to the