Darwin's Postulates

By Dario Molina

The 4 Postulates

1. Variation

2. Inheritance

3. Differential Survival

4. Extinction

Charles Darwin was an english naturalist and geologist. He dedicated his life to observe the animals and better understand the theory of evolution. By observing live animals and fossils, Darwin came up with the following postulates which explains why creatures change throughout time
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Some traits inherited by animals become obsolete and not suited for survival which means they die out through generations.
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National Geographic (n.d.). What are Darwin’s four postulates of evolution by natural selection? - National Geographic. Retrieved January 12, 2016


Spear, K. (2010, March 8). Chapter 3. Darwinian Natural Selection Retrieved January 12, 2016


Stiffler, L. (2011, August 1). Darwin’s Theory of Evolution. Retrieved January 12, 2016