All viewers of this document can see this public note. This is the most explicit and concise description and definition of natural selection in On the Origin of Species. Darwin’s view here is ...

This selection could be due, in part, to the properties of the bone, but also to the beliefs and values associated with this animal species. "In any case, further research at other sites with the ...

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 ...

How are humans contributing to negative selection? It's a part of evolution that can also drive some species to extinction; models of negative selection help us understand biodiversity.

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Why does the peacock have such an elaborate tail? This cumbersome trait significantly decreases the male's chances of survival. It only exists because it confers an advantage to its bearer in the ...

They are examples of how natural selection can act through ecological differences to spawn new species. The Andean hummingbirds are not an isolated case. The force of ecology has also been studied ...

Our planet is warming faster than at any time in the past 10,000 years. With these changes, species have to adapt to new climate patterns (variations in rainfall; longer, warmer summers etc). Global ...

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 ...