Darwin visited four continents on the ship HMS Beagle. Darwin’s theory of evolution by natural selection challenged the idea that God made all the animals and plants that live on Earth.

As conditions change, so does life. It evolves. Evolution is driven by a process called natural selection. And there's no better place to see how it works than in the forests of Madagascar.

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 ...

Natural selection is a mechanism of evolution. Organisms that are more adapted to their ... scientists studied the survival of a male finch that emigrated from Santa Cruz Island as well as six ...

Mutations generally fall into two types: point mutations and chromosomal ... for snake venom and therefore much of snake evolution. Natural selection in some ancestral snakes has favored enzymes ...

While malaria is the best-understood example of an infectious disease that has driven human evolution ... can exploit the genetic signatures of natural selection using novel analytical methods.

they often point to the human eye. How could something so complex, they argue, have developed through random mutations and natural selection, even over millions of years? If evolution occurs ...

in an attempt to gain a little more understanding of how convergent evolution works. "Phasmids (stick and leaf insects) exemplify the extraordinary power of natural selection to shape organismal ...

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 ...