Sentences with phrase «by natural selection for»

The breed evolved through the centuries by natural selection for its herding and guarding abilities.

Not exact matches

Discoveries include gathering the data used by Copernicus for his heliocentric conclusions and Al - Jahiz's proposal of the theory of natural selection.

The theory of evolution by natural selection is a beautiful explanation for the diversity of life based on observable facts.

try reading further:» «To suppose that the eye with all its inimitable contrivances for adjusting the focus to different distances, for admitting different amounts of light, and for the correction of spherical and chromatic aberration, could have been formed by natural selection, seems, I freely confess, absurd in the highest degree.

For some reason, many Catholics interested in the evolution / natural selection debate seem afraid of the concept because it has been taken up by the 6 - day creationists.

Darwin argued further that the different races created by natural selection were necessarily and beneficially locked in the severest struggle for survival.

Scientists may think they have good reasons for believing that living organisms evolved naturally from nonliving chemicals, or that complex organs evolved by the accumulation of micromutations through natural selection, but having reasons is not the same as having proof.

For Darwin the «moral faculties of man» were not original and inherent, but evolved from «social qualities» acquired «through natural selection, aided by inherited habit.»

In fact, Darwinian natural selection is defined as a process by which superior varieties exterminate their inferiors, whether by attacking them directly or by competing more effectively for limited resources.

There's a ton of evidence supporting the theory of evolution by natural selection, but not the least bit of evidence for creationism.

We can not prove that all current diversity of life was produced by evolution by natural selection because that would require a time machine for direct observation.

There is no way to calculate the probability of an eye, for example, evolving over the course of millions of years of evolution by natural selection.

On a purely secular view, humans are simply the accidental by - products of natural selection, monkeys who by chance grew brains too big for their own good.

As one who has studied genetics and mechanisms of evolution for most of her life» evolution by natural selection being the one with which I am most familiar» I can say with a high degree of confidence that Prof. Carlin has no clear idea of what «Darwinism» means.

For example, in criticising Dawkins, he points out that «If every step in the series [of evolution] occurs by chance... the end can not be ordered», apparently unaware that Dawkins does not view evolution as entirely random, but allows for a certain direction, provided by the mechanism of natural selection (p. 5For example, in criticising Dawkins, he points out that «If every step in the series [of evolution] occurs by chance... the end can not be ordered», apparently unaware that Dawkins does not view evolution as entirely random, but allows for a certain direction, provided by the mechanism of natural selection (p. 5for a certain direction, provided by the mechanism of natural selection (p. 51).

In my review I was not referring so much to his concession (quoted by Mr. Ghelardi) that if God does not exist then natural selection is our best available candidate for how complex forms came to be» although that quote certainly is as good an indication as any of my contention that the design argument will only end up becoming a breeding ground for atheism, a fetid terrarium for a whole new brood of Richard Dawkinses (not a pleasant thought, that).

Darwinism can not explain chemical complexity for the very good reason that natural selection requires a harsh environment brought about by overpopulation.

By itself, however, natural selection provides for no evolutionary advance, for it introduces no novelty, and hence no possibility of anything more than that which already has been.

Oh, btw, the entire quote is» «To suppose that the eye with all its inimitable contrivances for adjusting the focus to different distances, for admitting different amounts of light, and for the correction of Spherical and chromatic aberration, could have been formed by natural selection, seems, I freely confess, absurd in the highest degree.

It can not be decided by creatures mutually adapting to one another according to natural selection and mutation, for this assumes a basic physico - chemical order it does not explain.

Even further, the natural tensions with the earth were increased by the Darwinian principle of natural selection, indicating that the primary attitude of each individual and each species is for its own survival at the expense of the others.

3At present, for example, the well - entrenched neo-Darwinian hypothesis of «gradualism» (biological evolution occurs slowly, and more or less continuously as the constant interplay of random variations and natural selection over vast periods of time) is confronted with a somewhat more radical and neo-Lamarckian theory of «punctuated equilibrium» favored by Harvard biologists Stephen Jay Gould and Peter Williamson, collaborated by fossil discoveries of paleontologist and cultural anthropologist Richard Leakey in Africa.

DNA coding is affected by the environment via adaptation; DNA specific structure is unpredictable from biochemistry / physics alone but is environmentally determined over generations (via natural selection)-- resulting in the white fur of the polar bear, for example.

It is essentially the full ti.tle of Charles Darwin's seminal work: «On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life».

Internal teleological systems are accounted for by natural selection which is strictly mechanistic process.

As for the Eye — Creationists only ever refer to the rhetorical portion of Darwin's statement in which he said «to suppose that the eye... could have been formed by natural selection, seems, I freely confess, absurd in the highest possible degree» — but they never point out that he then went on to describe the evolutionary path of the eye — a theory which over a hundred years of careful research has confirmed.

Kauffman (in OO) argues that chaotic systems can give rise to structures «for free,» instead of each detail of structure having been forged independently by natural selection.

I marveled at a chart that showed a diagram of the tree of life, where relationships between different mammalian species were figured out solely by comparison of their DNA sequences, providing powerful support for Darwin's idea of descent from a common ancestor with natural selection operating on randomly occurring variations.

Also, human DNA does not differ that much from the DNA of our closest relatives, and the differences are easily accounted for by the standard source of mutation and natural selection.

Modernism developed on the basis of the Newtonian universe, conceived as a complex inanimate machine, operating in absolute space and absolute time according to its own internal laws, which were also believed to be eternal and absolute.4 Understanding this «natural world» was the key to everything; physicists set about uncovering the laws by which the physical world operates; Adam Smith looked for the natural laws by which the economy operates; Darwin thought he had discovered, in the law of natural selection, the origin of species.

The Restaurant at Ponte: Recognized as a top 50 restaurant for outdoor dining in the US by OpenTable, the Restaurant at Ponte serves a wide selection of Farmers» Market salads, grape - wood fired pizzas, fresh pasta dishes, natural beef, sustainable seafood and homemade desserts.

Famous for: His 5 year around the world trip where he visited the Galapagos Islands and based his evidence found on his theory of evolution by natural selection

Their argument has been around for four decades, but nothing in the letter addresses the challenges we raised: that the mathematical ground of inclusive fitness theory is unsound and that, when you compare competing hypotheses, outcomes are much more directly and convincingly explained by mainstream natural selection.

As for Darwin, Wolfe presents the greatest biologist in history as a petty thief who stole credit for the theory of evolution by natural selection from Alfred Russell Wallace, who was (Wolfe alleges) screwed over by the British gentlemen's club conspirators who rigged the system to give Darwin credit for priority.

In the mid-19th century Charles Darwin made these nuances the basis for his theory of evolution by natural selection.

No one knows for sure why they began to look more human, but unlike the bodies of other species, which are shaped by natural selection, ours may have been sculpted by our own ingenuity.

In nature this is determined by embryo development, during the life of each organism, and by evolution through natural selection, for each population and species.

To test this hypothesis, an international team led by evolutionary biologist Philipp Khaitovich of the Shanghai Institutes for Biological Sciences in China and the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, set out to see how many brain - related genes implicated in schizophrenia underwent positive natural selection since humans and chimpanzees diverged from a common ancestor between 5 million and 7 million years ago.

For instance, the theory of kin selection — helping your relatives so your genes will be reproduced — can be illustrated by a formula called «Hamilton's rule,» which explains when a behavior or trait will be favored by natural selection.

The proposed «two - speed» mode of venom evolution highlights the fascinating evolutionary dynamics of this complex biochemical cocktail, by showing for the first time the significant roles played by different forces of natural selection in shaping animal venoms.

• Extra: For an even greater understanding of evolution by natural selection, repeat this experiment on a different colored surface (try using fabric or paper) and see if the population changes in a different way.

For one such project, the team developed a new software tool called GppFst that allows researchers to differentiate genetic drift — a neutral process whereby genes and gene sequences naturally change due to random mating within a population — from genetic variations that are indicative of evolutionary changes caused by natural selection.

Evolutionary biology reminds us that we are animals, shaped by natural selection not for discovering deep truths of nature but for breeding.

I guess natural selection just selected for those that somehow get excited when females pass by, says Wikelski, It gives a signal to the brain that something's going on, makes the animal really excited and leads to pre-ejaculation.

Evolution by natural selection: Charles Darwin, 1859 Darwin showed that the intricate complexity of life and the intricate relationships among life - forms could emerge and survive from natural processes, with no need for a designer or an ark.

As subpopulations moved into isolated areas, how did they remain isolated over a long enough time for new species - defining traits to arise in nuclear genes and become enriched by natural selection to permit speciation?

Natural selection creates a dynamic, ever - changing biota, driven to evolve by genetic variation, adaptation to different environments, competition for limited resources, and cooperative exchanges among individuals.

The test works by looking for features that are associated with natural selection.

Twenty years later his On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life would have monocles plopping into soup all across the Victorian world and would forever answer the deepest question of all, Why Are We Here?

At the conference, biologists who work mostly in the field observing the behaviors of bees, ants, wolves, slime molds and other creatures tended to look for the mechanics of natural selection at the behavioral level by examining how individual organisms self - organize into hives, nests, packs, conglomerates or families.