Evolutionary biology has no practical application!

Actually, evolutionary biology has rather a lot of practical applications. A recent article by Douglas Futuyma in Science [1] listed several of these (mostly paraphrased or quoted from the article):

[1] Futuyma, D. 1995. The uses of evolutionary biology. Science 267(6 Jan. 1995):41-42.

[2] Kingsolver, J., P. Kareiva, and R.B. Huey, eds. 1993. Biotic Interactions and Global Change. Sinauer: Sunderland, MA.

[3] Antonovics, J. 1975. Proceedings of the International Conference on Heavy Metals in the Environment (Toronto 1975), pp.169-186.

[4] Gould, F. 1991. American Scientist 79:496.