They have done nothing less than witness Darwin's theory of evolution unfold before their eyes. That would have stunned Darwin, who thought natural selection operated over vast periods of time and ...

Darwin thought that evolution took place over hundreds or ... The Grants had documented natural selection in action. While beak size is clearly related to feeding strategies, it is also related ...

The study showed that populations don’t lose their “evolvability,” even if conditions remain the same for many generations.

Let us tell you that the theory of evolution by natural selection was first formulated in Darwin's book "On the Origin of Species" in 1859. It is explained that organisms change over time as a ...

It is one of the processes by which species change from generation to generation, and is a crucial element of the theory of evolution. A classic example of natural selection at work is the origin ...

The British naturalist embarked on an extraordinary journey, did hundreds of experiments, and wrote for 20 years.

"We might be inclined to think that these components were added by natural selection, that this added ... "At some point ...

Intelligent male mosquitofish mate more, suggesting intelligence and brainpower evolved partly for reproduction, not just ...

In March 1925, Tennessee became the first state in the country to ban the teaching of evolution in public school classrooms.

This helps the species to be more successful in its habitat. It’s natural selection at work. In some examples of convergent evolution, species evolve the same solution to a problem but take a ...

Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes ...