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The peacock, though it is often used by creationists as an argument against evolution, is a great example of how it works. It has been proved that peahens will choose males with brighter colors. Therefor, if they continue to only mate with the brightest males, then only the brightest males will pass on their genes, and then only the brightest of that generation will pass on their genes. Over time brighter and brighter birds emerge until you have something as flamboyant and unnecessary as the peacock. Because of this, the alleles for the less bright peacocks will fade away (natural selection).
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Answer A bacteria has evolved to be able to consume nylon, a product invented only in 1935.
My favourite example of evolution is the development of multicellular organisms (this has also been observed). A kind of eukaryotic cell once started to bind to its fellow cel…ls in order to make it more difficult for predators to kill them. This is an example of evolution as a result of predation, a selective agent.
Fossils show certain species underwent small changes over a period of years the rock in which the fossil is encased dates the fossil and so they can put them in order to show …the progression of the physical changes
An example of evolution by natural selection would be: There is a species of beetle living in a wooded forest full of yellow flowers. Thankfully the beetle is colored to look …like the plant and hides extremely well. But a sudden disease kills off the yellow flowers leaving only a species of red flowers behind. As the beetles go on, the ones with darker or redish colorations reproduce more than the lighter or yellowish colored beetles which are less camoflouged. As a result, only the beetles with redish colorations survive and they evolve to become the same red coloration of the new flowers.
the domestication of dogs into various breeds
They are well adapted to their environment due to change over time in their allele frequency.
Birds and bats have adapted to flight in a similar way. Their wings are analogous (as opposed to homologous).
This question should be: What are some examples of biochemical evidence for evolutionary theory
The human foot verses the chimpanzees foot, for instance. Both organisms diverged from common ancestry, but their feet were subject to vastly different environmental pressures… and function in very different ways now, though their commonality is rather obvious.
Evolution as science is probably the most thoroughly debunked aspect of communism. Based on wild theories about the most surface level similarities in how various species look…, evolution simply fails whenever put the simplest test of observation. Simply put, there are no missing links. Evolution, were it true, would result in near infinite variation in the fossil record with clear progression as one species "evolved" into another. Nowhere, despite MILLIONS of examples of fossils, does this happen. Even bacteria, that can be forced to undergo millions of generations of reproduction in short periods of time, fail to show the slightest evidence of "evolution". There are mutations. But mutation RARELY proves beneficial and usually results in that particular bacteria dying. NEVER do you see one type of bacteria becoming a new type of bacteria. Furthermore, the evolutionary explanation life is patently absurd, and violates a prime tenant of biology (that life only originates from life and never from non-life). Evolution is not and never was a legitimate scientific theory. Instead, it's a form of pseudo-science with only the purpose of putting forth a lame alternative explanation for the human condition to challenge the bible. And the purpose of THAT was to convince deeply religious societies to secularize and accept the unacceptable....genocide, slavery etc. under marxism. As such it's part of similar pseudo-science not based on legitimate scientific method but instead, designed to manipulate people by attempting to apply the legitimacy of science to something malevolent and absurd. Another example is freudian theory. Other examples are sociology. All these things are similar. They describe nebulous, hard to examine processes, that challenge common sense.....and what scientific observation is possible (or becomes possible through technological advancement) is in direct contradiction to the theory.....yet the theory is not abandoned. More to the point, these theories are used to advance morbid ideologies (nazism, stalinism, satanism etc.) and NOT integrated into the rest of scientific knowledge. You will never find, for example, evolution contributing to related scientific discoveries. Not only can it not....but adherents shield it as much as they can from close scrutiny....to the point of fraud. You may have been taught in school various examples of evolution in action (I know I was) but what was not mentioned were these were, without exception discovered to be frauds......from the peppered moths (painted) to Piltdown man (an orangutan fraudulently put forth as the missing link).....all frauds. And I challenge you to find a single exception (you won't).
In preparation for Charles Darwin's upcoming 200th birthday, the editors of Nature compiled a selection of especially elegant and enlightening examples of evolution. digg …They describe it as a resource "for those wishing to spread awareness of evidence for evolution by natural selection." Given the continuing battles over evolution in America's public schools - and, for that matter, the Islamic world - such a resource is most welcome. However, I'd like to suggest another way of looking at the findings below, which range from the moray eel's remarkable second jaw to the unexpected plumage of dinosaurs. They are, quite simply, wondrous - glimpses through an evolutionary frame of life's incredible narrative, expanding to fill every possible nook and cranny of Earth's biosphere. After all, it's hard to stir passion about the scientific validity of evolution without first captivating minds and imaginations. And this is a fine place to start. ://wiki.answers.com/wiredscience/wp-content/image.php?u=/images blogs/photos/uncategorized/2008/12/30/nat1indohyus2.jpg Almost, But Not Quite, a Whale. The fossil record suggests that whales evolved on land, and intermediate species have been identified. But what of their last terrestrial ancestor? In 2007, researchers showed that Indohyus - a 50 million-year-old, dog-sized member of the extinct raoellidae ungulate family - had ears, teeth and bones that resembled whales, not other raoellids. Image: Hans Thewissen / Nature ://wiki.answers.com/wiredscience/wp-content/image.php?u=/images blogs/photos/uncategorized/2008/12/30/nat1tiktaalik.jpg Out of the Soup. Whales represented a mammalian return to the water, but an even more extraordinary transition was made by the first creature to venture onto land - and that was made possible by Tiktaalik, discovered in 2004 on Ellesmere Island. Tiktaalik had a flexible neck and limb-like fins suitable for shallow waters, and, before long, land. Image: Ted Daeschler / Nature ://wiki.answers.com/wiredscience/wp-content/image.php?u=/images blogs/photos/uncategorized/2008/12/30/nat3feathereddinoa.jpg Dinosaurs of a Feather. Archaeopteryx, found in 1861, was long thought to be the first bird. Then it was recognized as something closer to a dinosaur with feathers - but still unique for that. In the 1980's, however, paleontologists digging in deposits more than 65 million years old in northern China found feathered dinosaurs which very definitely did not fly. Some dinosaurs, it appeared, may have looked far different from our traditional conception - and feathers may first have served an insulating or aesthetic, rather than aerodynamic, purpose. Image: Zhao Chuang & Xing Lida / Nature ://wiki.answers.com/wiredscience/wp-content/image.php?u=/images blogs/photos/uncategorized/2008/12/30/nat4teeth.jpg A Toothy Finding. In 2007, University of Helsinki evolutionary biologist Kathryn Kavanagh showed that molars emerge from front to back, with each tooth smaller than its precedent. Fodder for geeked-out dentists? Far from it: Her model predicted tooth development of rodents with different diets - a perfect confluence of a small mechanical observation and observed evolutionary trajectories.
Evolution is a property of living things. Heat and light do not have genes and therefore cannot evolve.
The development of resistance to antibiotics by bacteria is a real world example of evolution.
All reproductively isolated populations diverge genetically. Even in cases where convergent evolution occurs, this is only at the behavioural and morphological level. At the m…olecular and the genetic level, even these instances still diverge at the genetic level.
If you believe in evolution, an example of variation would be different colored skin.
A common example of evolutionary adaptation is that of the giraffe population eventually having longer necks, even though they have the same number of vertebrae as humans …and most other mammals. Evolution is driven by two things: random mutation and natural selection. Mutations add to the variability within a population and natural selection is like a filter that selects and propagates adaptive traits that provide some competitive advantage to individuals that have it. To elaborate on the above example, there is naturally occurring variation within a giraffe population (as there is within any species), so that some individuals are born with slightly longer necks than others. During drought or famine, these are better able to reach higher branches on trees, gaining more food energy to survive and reproduce. In subsequent generations that inherit these traits, still others may be born with slightly longer necks than average, and thereby gain further competitive advantage for themselves and their offspring. Over the course of many generations, those with better survival traits increase in number, while those without it decline in number. It is worth noting that, while an individual can be born with an adaptation, evolution does not apply to individuals; evolution pertains to gene pools within populations or species, and occurs over many generations.
In Animal Life
Usually animals take longer than a human lifespan to adapt to new environments. It take a singling out of the most fit.