Biological Principles

http://youtu.be/mkPkVwU7-qw

Sources:

West, Stuart A; Murray, Martyn G; Machado, Carlos A; Griffin, Ashleigh S;Edward Allen Herre.  2001. “Testing Hamilton’s rule with competition between relatives”. Nature 409 (6819):510-3.

Griffin, Ashley S;West, Stuart A. 2003. “Kin discrimination and the benefit of helping in      cooperatively breeding vertebrates”. Science 302(5645):634-6.

Dugatkin, Lee A. “Inclusive Fitness Theory from Darwin to Hamilton.” Genetics       176.3(2007): Genetics. Web. 10 Nov.2015 <http://m.genetics.org/content/176/3/1375.full>.

https://www.youtube.com/watch?v=Hd-RFw3kEcU

https://www.youtube.com/watch?v=3UfnAgg3FB4

https://www.youtube.com/watch?v=2qHuG5sXUyk&feature=youtu.be

https://youtu.be/hGAJX_fO3wA

http://youtu.be/ZCRcvxu6e0s