Darwin's Four Postulates

Let's explore Darwin's main theories.

Four traits

1. In all species there is variation that is transmitted through heritage. This means that new generations are variants of the last, and there are a vast number of types of phenotypes that can be produced.

2. In every generation, more offspring can produce that can survive. Each generation has more children, therefore there will always be more produce.

3. Survival and reproduction is not random. Some individuals find more mates and survive more. The best and the fittest will survive.

4. Phenotypic variants are passed on to offspring. More fit phenotypes are represented by next generation. This means that all of the individuals attributes are passed on to the next generation.



Crane, G. (2015). Ch 3. Darwinian Natural Selection. Retrieved April 04, 2016, from http://faculty.buffalostate.edu/penaloj/bio405/outline3.html

Harp, C. (2012). Darwin’s Theory of Evolution. Retrieved April 04, 2016, from http://www.science4all.org/article/darwins-theory-of-evolution/

Johnson, A. (2016). Ch1. Adaptation by Natural Selection. Retrieved April 04, 2016, from http://www.wwnorton.com/college/anthro/bioanth/ch1/chap1.htm

Schumann, R. (2015). What are the four postulates presented in Charles Darwin's On the Origin of Species? - The Handy Biology Answer Book. Retrieved April 04, 2016, from https://www.papertrell.com/apps/preview/The-Handy-Biology-Answer-Book/Handy Answer book/What-are-the-four-postulates-presented-in-Charles-Darwin-s-O/001137031/content/SC/52cb02a282fad14abfa5c2e0_default.html

About Darwin

Darwin's Voyages to the Galapagos shaped our knowledge about evolution and the world.