This study has provided evidence of how evolution actually occurs. One of the populations developed the ability to utilize citrate as a nutrient, something otherwise unknown in E. coli under similar conditions. “Life Evolves!” This quote is from a brilliant letter Lenski wrote to a particularly odious creationist.
http://listverse.com/2011/11/19/8-examples-of-evolution-in-action/
Since Darwin's day, science has made astounding advances in the ways in which it can study organisms. One of the most useful advances has been the development of molecular biology. In this field, scientists look at the proteins and other molecules that control life processes. While these molecules can evolve just as an entire organism can, some important molecules are highly conserved among species.
http://www.sparknotes.com/biology/evolution/evidence/section4.rhtml
8 Examples of Evolution in Action. Evolution is one of the greatest scientific discoveries of all time. Armed with the knowledge of the interconnectedness of all life on earth, biologists have made startling discoveries. There is so much evidence in favor of evolution, that arguing against it is like denying that there is a moon in the sky. Yet people do still actively deny evolution occurs.
http://listverse.com/2011/11/19/8-examples-of-evolution-in-action/
Speciation, the formation of a new species from an ancestor species, takes a very long time yet there are evolutionary steps which can be observed. Here are eight examples, amongst many, of evolution in action.
http://listverse.com/2011/11/19/8-examples-of-evolution-in-action/
The key to using biological molecules as molecular clocks is the hypothesis of neutral evolution. This hypothesis states that most of the variability in molecular structure does not affect the molecule's functionality. This is because most of the variability occurs outside of the functional regions of the molecule.
http://www.sparknotes.com/biology/evolution/evidence/section4.rhtml
In this article, we'll examine the evidence for evolution on both macro and micro scales. First, we'll look at several types of evidence (including physical and molecular features, geographical information, and fossils) that provide evidence for, and can allow us to reconstruct, macroevolutionary events.
https://www.khanacademy.org/science/biology/her/evolution-and-natural-selection/a/lines-of-evidence-for-evolution
Natural selection is a mechanism of evolution (something that can cause evolution to take place). In natural selection, a genetically specified trait that make organisms more fit, or better able to survive and reproduce than their peers, becomes more common in the population over generations.
https://www.khanacademy.org/science/biology/her/evolution-and-natural-selection/a/lines-of-evidence-for-evolution
Before we look at the evidence, let's make sure we are on the same page about what evolution is. Broadly speaking, evolution is a change in the genetic makeup (and often, the heritable features) of a population over time.
https://www.khanacademy.org/science/biology/her/evolution-and-natural-selection/a/lines-of-evidence-for-evolution
Evidence from observed natural selection. Examples for the evidence for evolution often stems from direct observation of natural selection in the field and the laboratory. Scientists have observed and documented a multitude of events where natural selection is in action. The most well known examples are antibiotic resistance in the medical field along with better-known laboratory experiments documenting evolution's occurrence.
http://darwinwasright.org/observations_natural_selection.html
Physical features shared due to evolutionary history (a common ancestor) are said to be homologous. To give one classic example, the forelimbs of whales, humans, birds, and dogs look pretty different on the outside. That's because they're adapted to function in different environments.
https://www.khanacademy.org/science/biology/her/evolution-and-natural-selection/a/lines-of-evidence-for-evolution
in biology what example provides evidence of natural selection
The evidence for evolution often stems from direct observation of natural selection in the field and the laboratory.