It seems to me that for Darwin the pulsing of evolutionary rates was a strictly vertical phenomenon. — Ernst Mayr Copy Share Image
Indeed, I was unable to find any evidence whatsoever of the occurrence of a drastic evolutionary acceleration and genetic reconstruction in widespread,… — Ernst Mayr Copy Share Image
According to the concept of transformational evolution, first clearly articulated by Lamarck, evolution consists of the gradual transformation of organisms from one… — Ernst Mayr Copy Share Image
Evolution thus is merely contingent on certain processes articulated by Darwin: variation and selection. — Ernst Mayr Copy Share Image
In Earth, among millions of lineages or organisms and perhaps 50 billion speciation events, only one led to high intelligence ; this… — Ernst Mayr Copy Share Image
A species is a reproductive community of populations reproductively isolated from others that occupies a specific niche in nature. — Ernst Mayr Copy Share Image
Evolution as such is no longer a theory for a modern author. It is as much a fact as that the earth… — Ernst Mayr Copy Share Image
Isolating mechanisms are biological properties of individuals that prevent the interbreeding of populations that are actually or potentially sympatric. — Ernst Mayr Copy Share Image
The major novelty of my theory was its claim that the most rapid evolutionary change does not occur in widespread, populous species,… — Ernst Mayr Copy Share Image
As a consequence, geneticists described evolution simply as a change in gene frequencies in populations, totally ignoring the fact that evolution consists… — Ernst Mayr Copy Share Image
Two forms or species are sympatric, if they occur together, that is if their areas of distribution overlap or coincide. Two forms… — Ernst Mayr Copy Share Image
There are a number of attributes of species and populations that are not of any particular selective advantage to any single individual… — Ernst Mayr Copy Share Image
The most consequential change in man's view of the world, of living nature and of himself came with the introduction, over a… — Ernst Mayr Copy Share Image
A new species develops if a population which has become geographically isolated from its parental species acquires during this period of isolation… — Ernst Mayr Copy Share Image
Given the fact of evolution, one would expect the fossils to document a gradual steady change from ancestral forms to the descendants.… — Ernst Mayr Copy Share Image
anyone who writes about "Darwin's theory of evolutionin the singular, without segregating the theories of gradual evolution, common descent, speciation, and the… — Ernst Mayr Copy Share Image
Evolution, thus, is merely contingent on certain processes articulated by Darwin: variation and selection. No longer is a fixed object transformed, as… — Ernst Mayr Copy Share Image
Paleontologists had long been aware of a seeming contradiction between Darwin's postulate of gradualism, confirmed by the work of population genetics, and… — Ernst Mayr Copy Share Image
The reduced variability of small populations is not always due to accidental gene loss, but sometimes to the fact that the entire… — Ernst Mayr Copy Share Image
The issue, as correctly emphasized by Carl Sagan, is the probability of the evolution of high intelligence and an electronic civilization on… — Ernst Mayr Copy Share Image
“I published that theory [of speciational evolution] in a 1954 paper…and I clearly related it to paleontology. Darwin argued that the fossil… — Ernst Mayr Copy Share Image
“{ On to contributions to evolutionary biology of 18th century French scientist, Georges-Louis Leclerc, Comte de Buffon } He was not an… — Ernst Mayr Copy Share Image
Most of them are doomed to rapid extinction, but a few may make evolutionary inventions, such as physiological, ecological, or behavioral innovations… — Ernst Mayr Copy Share Image
Biology can be divided into the study of proximate causes, the study of the physiological sciences (broadly conceived), and into the study… — Ernst Mayr Copy Share Image
New gene pools are generated in every generation, and evolution takes place because the successful individuals produced by these gene pools give… — Ernst Mayr Copy Share Image
I had found again and again that the most aberrant population of a species - often having reached species rank, and occasionally… — Ernst Mayr Copy Share Image
Wherever we look at the living biota … discontinuities are overwhelmingly frequent…The discontinuities are even more striking in the fossil record. New… — Ernst Mayr Copy Share Image
On the other hand, famous evolutionists such as Dobzhansky were firm believers in a personal God. He would work as a scientist… — Ernst Mayr Copy Share Image
“The funny thing is if in England, you ask a man in the street who the greatest living Darwinian is, he will… — Ernst Mayr Copy Share Image
A species consists of a group of populations which replace each other geographically or ecologically and of which the neighboring ones integrate… — Ernst Mayr Copy Share Image
“The funny thing is if in England, you ask a man in the street who the greatest living Darwinian is, he will say Richard… — Ernst Mayr Copy Share
The history of science knows scores of instances where an investigator was in the possession of all the important facts for a new theory… — Ernst Mayr Copy Share
most scientific problems are far better understood by studying their history than their logic. — Ernst Mayr Copy Share
Evolution, thus, is merely contingent on certain processes articulated by Darwin: variation and selection. No longer is a fixed object transformed, as in transformational… — Ernst Mayr Copy Share
In Earth, among millions of lineages or organisms and perhaps 50 billion speciation events, only one led to high intelligence ; this makes me… — Ernst Mayr Copy Share
I have the honesty to say I'm an Atheist. There is nothing that supports the idea of a personal God. — Ernst Mayr Copy Share
All I claimed was that when a drastic change occurs, it occurs in a relatively small and isolated population. — Ernst Mayr Copy Share
A new species develops if a population which has become geographically isolated from its parental species acquires during this period of isolation characters which… — Ernst Mayr Copy Share
According to the concept of transformational evolution, first clearly articulated by Lamarck, evolution consists of the gradual transformation of organisms from one condition of… — Ernst Mayr Copy Share
Our understanding of the world is achieved more effectively by conceptual improvements than by discovery of new facts — Ernst Mayr Copy Share
Wherever we look at the living biota … discontinuities are overwhelmingly frequent…The discontinuities are even more striking in the fossil record. New species usually… — Ernst Mayr Copy Share
There are a number of attributes of species and populations that are not of any particular selective advantage to any single individual in a… — Ernst Mayr Copy Share
The reduced variability of small populations is not always due to accidental gene loss, but sometimes to the fact that the entire population was… — Ernst Mayr Copy Share
![“I published that theory [of speciational evolution] in a 1954 paper…and I clearly related it to paleontology. Darwin argued that the fossil record is very incomplete because some species fossilize better than others... I noted that you are never going to find evidence of a small local population…” quote by Ernst Mayr](https://sms4smile.com/q/img-quotes/870/ernst-mayr-13171_biology_i-published-that-theory-of-speciational_1411110.jpg)
