Claim Quote by Ernst Mayr Download Open image “I did not claim that speciation occurs only in founder populations.” — Ernst Mayr ★ ★ ★ ★ ★ 2.2 out of 5 (10 ratings) Copy quoteShare Claim Did Founder Occurs Only Populations
Most evolving lineages, human or otherwise, when threatened with extinction, don't do anything special to avoid it. — George C. Williams Copy Share Image
The process of speciation is completed with the cessation of genetic exchange. — Peter R. Grant 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, populous species. — Ernst Mayr Copy Share Image
No biologist has actually seen the origin by evolution of a major group of organisms. — G. Ledyard Stebbins 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, as claimed… — Ernst Mayr Copy Share Image
“Evolution requires intermediate forms between species and palaeontology does not provide them.” — David Kitts 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 record is… — Ernst Mayr Copy Share Image
No matter how numerous they may be, mutations do not produce any kind of evolution. — Pierre-Paul Grasse Copy Share Image
All geologic history is full of the beginning and the ends of species-of their first and last days; but it exhibits no genealogies of… — Hugh Miller Copy Share Image
I find the idea of common descent (that all organisms share a common ancestor) fairly convincing, and have no particular reason to doubt it. — Michael Behe Copy Share Image
Speciation does not necessarily promote evolutionary change; rather, speciation 'gathers in' and guards evolutionary change by locking and stabilization for sufficient geological time within… — Stephen Jay Gould Copy Share Image
There is more to biology than rats, Drosophila, Caenorhabditis, and E. coli. — 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 Image
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 Image
most scientific problems are far better understood by studying their history than their logic. — 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 in transformational… — 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 makes me… — Ernst Mayr Copy Share Image
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 Image
All I claimed was that when a drastic change occurs, it occurs in a relatively small and isolated population. — 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 characters which… — 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 condition of… — Ernst Mayr Copy Share Image
Our understanding of the world is achieved more effectively by conceptual improvements than by discovery of new facts — 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 species usually… — Ernst Mayr Copy Share Image
Extremist perspectives win sympathy and recruits because they offer narratives that claim to identify deep injustices and enemies. — Jonas Gahr Store Copy Share Image
When scientists are asked what they are working on, their response is seldom 'Finding the origin of the universe' or 'Seeking to cure cancer.'… — Martin Rees Copy Share Image
The claim of the State Socialists, however, that this right would not be exercised in matters pertaining to the individual in the more intimate… — Benjamin Tucker Copy Share Image
I personally claim no special insight into Satan's methods, but I have at times been able to identify his influence and his actions in… — James E. Faust Copy Share Image
“Their hands clasped between them, he whispered into her ear, "I claim you, too, Aelin Galathynius.” — Sarah J. Maas Copy Share Image
When you claim to have the truth, as opposed to the truth as you perceive it, then you move us toward a theocratic view… — Gene Robinson Copy Share Image
I don't claim to be the best boxer in the world. What I claim to do is give 100% when I get in that ring. — Tony Bellew Copy Share Image
In refugee camps around the world, I met people who were gone. They were still walking around but had lost so much that they… — Deborah Ellis Copy Share Image
When I talk about the end of apartheid, I prefer not to claim the honor that I have ended it. — F. W. de Klerk Copy Share Image
On the IRS website, they claim to be one of the world's most efficient tax administrators. The IRS officials might know how to collect… — Mercedes Schlapp Copy Share Image
Republicans constantly claim to be the party that defends the Constitution. We have no legitimate right to that claim until we get right on… — Mark McKinnon Copy Share Image
“Never expect anything less than devotion from someone who has claim on your heart.” — Dannika Dark Copy Share Image
