Find the best quotes by Ernst Mayr.
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…
Living in an entirely different physical as well as biotic environment, such a population would have unique opportunities to enter new niches and to select…
I did not claim that speciation occurs only in founder populations.
All I claimed was that when a drastic change occurs, it occurs in a relatively small and isolated population.
I had found again and again that the most aberrant population of a species – often having reached species rank, and occasionally classified even as…
According to the concept of transformational evolution, first clearly articulated by Lamarck, evolution consists of the gradual transformation of organisms from one condition of existence…
Life is simply the reification of the process of living.
Most of them are doomed to rapid extinction, but a few may make evolutionary inventions, such as physiological, ecological, or behavioral innovations that give these…
The major novelty of my theory was its claim that the most rapid evolutionary change does not occur in widespread, populous species, as claimed by…
Indeed, I was unable to find any evidence whatsoever of the occurrence of a drastic evolutionary acceleration and genetic reconstruction in widespread, populous species.
It seems to me that for Darwin the pulsing of evolutionary rates was a strictly vertical phenomenon.
Evolution thus is merely contingent on certain processes articulated by Darwin: variation and selection.
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…
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…
Explore More Topics →