A Quote by Ernst Mayr

Evolution, thus, is merely contingent on certain processes articulated by Darwin: variation and selection. No longer is a fixed object transformed, as in transformational evolution, but an entirely new start is, so to speak, made in every generation.

Ernst Mayr

Quote Author

Ernst Mayr
German - Scientist
July 5, 1904 - February 3, 2005

Evolution thus is merely contingent on certain processes articulated by Darwin: variation and selection.

Ernst Mayr

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 to another.

Ernst Mayr

You know, Darwin said through natural selection things go gradually, and he was talking about pigeon's evolution or horses evolving, getting faster. But in fact if you look at evolution on a bigger scale, cosmic evolution and you look at culture evolution you see it jumps, it goes through phase changes, and that's very exciting.

Charles Jencks

All scientists agree that evolution has occurred - that all life comes from a common ancestry, that there has been extinction, and that new taxa, new biological groups, have arisen. The question is, is natural selection enough to explain evolution? Is it the driver of evolution?

Lynn Margulis

All scientists agree that evolution has occurred-that all life comes from a common ancestry, that there has been extinction, and that new taxa, new biological groups, have arisen. The question is, is natural selection enough to explain evolution? Is it the driver of evolution?

Lynn Margulis

Natural Selection is not Evolution. Yet, ever since the two words have been in common use, the theory of Natural Selection has been employed as a convenient abbreviation for the theory of Evolution by means of Natural Selection, put forward by Darwin and Wallace. This has had the unfortunate consequence that the theory of Natural Selection itself has scarcely ever, if ever, received separate consideration.

Ronald Fisher

Alfred Russel Wallace, the codiscoverer of the theory of natural selection. Following their twin announcements of the theory in 1858, both Darwin and Wallace struggled like Laocoöns with the serpentine problem of human evolution and its encoiling difficulty of consciousness. But where Darwin clouded the problem with his own naivete, seeing only continuity in evolution, Wallace could not do so.

Julian Jaynes

Group selection and individual selection are just two of the selection processes that have played important roles in evolution. There also is selection within individual organisms (intragenomic conflict), and selection among multi-species communities (an idea that now is getting attention in work on the human microbiome). All four of these levels of selection find a place in multi-level selection theory.

Elliott Sober

Evolution by natural selection is not an idle hypothesis. The genetic variation on which selection acts is well understood in principle all the way down to the molecular level.

E. O. Wilson

There is behavioral ecology, which looks closely at the difference different ecologies make to behavior and other features of animals and humans. There's evolutionary individual psychology, there's evolutionary social psychology. In Darwin's terms, evolution couldn't exist without variation, and variation is important in behavioral genetics. And so on, and so on. There are so many instances in which evolution actually sharpens the precision, I think, with which one can find out the importance of differences. We're interested in differences as well as commonalities.

Brian Boyd

Evolution is ultimately why cancer is so deadly. Take two biopsies from different sides of a tumor, and they can be genetically very different, making it that much harder to fight. Variation is the toolbox of evolution, and this variation gives cancer strength.

Kyle Hill

Wilberforce did not believe in either evolution or extinction. Owen believed in extinction but not evolution. Lamarck believed in evolution but not extinction. Darwin believed in evolution and extinction. All four of them believed in God.

Sara Maitland

Evolution is variation and selection. If you can vary alternatives, and select among them, improvement emerges. It works in technology, in apps, and in life itself. What stunned me about seasteading is that it's a technology for variation and selection in governance itself. The reason some two hundred nation-states do a poor job of governing seven billion people is that they don't vary, and people don't select.

Joe Quirk

If you define evolution as merely meaning change over time, then I don't see any problem with a person being a Christian and believing in evolution. But that's not how textbooks define evolution. They define evolution as being random and undirected without plan or purpose.

Lee Strobel

You don't wanna know the sinner. You don't wanna know the killer. Because it's you. Television is stalling evolution. Medication is stalling evolution. Evolution is stalling revolution. Evolution, revolution. Collaboration, the start of revolution. My decision, the start of revolution. Revolution, the start of evolution. Revolution, evolution.