Published on Jul 3, 2012 Hank explains the evolutionary basis for altruistic behavior in animals, including vampire bats! Like SciShow on Facebook: Follow SciShow on Twitter: References for this episode can be found in the Google document here: scishow, science, altruism, altruistic, behavior, biology, darwin, natural selection, william hamilton, equation, evolution, genetic, hereditary, inclusive fitness, bee, ant colony, vampire bat, social, sharing, cooperation, resource, hank green Category Education License Standard YouTube License

Posted by Living Empowered® on December 17, 2013 at 12:08 PM 1237 Views

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