In neither his definition
In neither his definition nor the examples illustrating what memes are does Dawkins mention anything that would distinguish memes from concepts. Ernst Mayr
Ernst Mayr
Given the fact of
Given the fact of evolution, one would expect the fossils to document a gradual steady change from ancestral forms to the descendants. But this is not what the paleontologist finds. Instead, he or she finds gaps in just about every phyletic series. Ernst Mayr
Two forms or species
Two forms or species are sympatric, if they occur together, that is if their areas of distribution overlap or coincide. Two forms (or species) are allapatric, if they do not occur together, that is if they exclude each other geographically. The term allopatric is primarily useful in denoting geographic representatives. Ernst Mayr
It seems to me
It seems to me that for Darwin the pulsing of evolutionary rates was a strictly vertical phenomenon. Ernst Mayr
In those early years
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. Ernst Mayr
I had found again
I had found again and again that the most aberrant population of a species – often having reached species rank, and occasionally classified even as a separate genus – occurred at a peripheral location, indeed usually at the most isolated peripheral location. Ernst Mayr
It is curious how
It is curious how often erroneous theories have had a beneficial effect for particular branches of science. Ernst Mayr
anyone who writes about
anyone who writes about Darwin’s theory of evolutionin the singular, without segregating the theories of gradual evolution, common descent, speciation, and the mechanism of natural selection, will be quite unable to discuss the subject competently. Ernst Mayr
The reduced variability of
The reduced variability of small populations is not always due to accidental gene loss, but sometimes to the fact that the entire population was started by a single pair or by a single fertilized female. These ‘founders’ of the population carried with them only a very small proportion of the variability of the parent population. … Read more
Indeed, I was unable
Indeed, I was unable to find any evidence whatsoever of the occurrence of a drastic evolutionary acceleration and genetic reconstruction in widespread, populous species. Ernst Mayr