Darwin's Postulates

Read to find out!

V A R I A T I O N

Different but the same?

There is a lot of variety within a species (size, color, shape).


For example the variation of shell types within the Galapagos Tortoises.

I N H E R I T A N C E

Keep them going

The varieties in species are sometimes passed on to the offsprings (to continue the chain)

D I F F E R E N T I A L

S U R V I V A L

THE best shall live

External conditions may affect survival, so offsprings who are better suited to the environment around them, tend to be produced more often

E X T I N C T I O N

Is random random?

Nothing is RANDOM! Things do not just happen because they do: it is because someone or something makes it happen. In this case, animals who are not properly suited for their environment die off and take their "weak" traits with them, hence leaving behind those with the favorable traits and those best suited for the environment.

BIBLIOGRAPHY

Hebert, Q. (2016, January 18). Darwin and his Ideas. Retrieved April 2, 2016, http://ghr.nlm.nih.gov/condition/DarwinandhisIdeas


Desmond, A.(2016, March 31). The Origin of Species & Charles Darwin. Retrieved April 2, 2016, http://www.http://global.britannica.com/biography/Charles-Darwin/On-the-Origin-of-Species


Seeley, T. (2014, April, 21). Animal Behavior & His Influences. Retrieved April 2, 2016, http://www.http://global.britannica.com/topic/animal-behavior/History-and-basic-concepts#ref497943