# Natural selection

> A major mechanism of evolution proposed by Darwin, introduced in detail in Chapter 3 and Chapter 4 of On the Origin of Species. Depending on the context, it is sometimes divided into survival selection and sexual selection.

A major mechanism of evolution proposed by [Darwin](https://wiki.g15e.com/pages/Charles%20Darwin.txt), introduced in detail in [Chapter 3](https://wiki.g15e.com/pages/On%20the%20origin%20of%20species%20-%20Chapter%203.txt) and [Chapter 4 of On the Origin of Species](https://wiki.g15e.com/pages/On%20the%20origin%20of%20species%20-%20Chapter%204.txt). Depending on the context, it is sometimes divided into <survival selection> and [sexual selection](https://wiki.g15e.com/pages/Sexual%20selection.txt).

## See also

- <The Unit of Natural Selection>