Note that this change was not due to pollution making the moths darker. The dark variety had always existed in small numbers, but only had a selective advantage when the selection pressure changed.

The Grants had documented natural selection in action. While beak size is clearly related to feeding strategies, it is also related to reproduction. Female finches tend to mate with males that ...

In natural populations, the mechanisms of evolution do not act in isolation. This is crucially important to conservation geneticists, who grapple with the implications of these evolutionary ...

However, natural selection has its limits. In particular, because it is not guided by a consciousness, it has no foresight and can lead species to evolve down paths that seem advantageous but ...

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 ...

To constitute natural selection, the difference in survival and/or reproduction cannot be due to chance, and it must have the potential consequence of altering the proportions of the different ...

I remember thinking that this is natural selection in action, here before my eyes, and in Darwin’s islands!" A reminder: January 5 marks the deadline for our third annual photo contest.

linkurl:Peter;http://www.princeton.edu/eeb/people/display_person.xml?netid=prgrant&display=All and linkurl:Rosemary Grant,;http://www.princeton.edu/eeb/people/display ...

Melvyn Bragg discusses Jean-Baptiste Lamarck, the 18th century French scientist, and his theory of Natural Selection. Who was he and how far did he pave the way for Darwin? Show more Melvyn Bragg ...