New gene pools are generated in every generation, and evolution takes place because the successful individuals produced by these gene pools give rise to the next generation.

There is more to biology than rats, Drosophila, Caenorhabditis, and E. coli.

A species is a reproductive community of populations reproductively isolated from others that occupies a specific niche in nature.

I feel that one species, mankind, doesn't have the right to exterminate

Evolution ... is opportunistic, hence unpredictable.

As a consequence, geneticists described evolution simply as a change in gene frequencies in populations, totally ignoring the fact that evolution consists of the two simultaneous but quite separate phenomena of adaptation and diversification.

In those early years in New York when I was a stranger in a big city, it was the companionship and later friendship which I was offered in the Linnean Society that was the most important thing in my life.