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Why Sexy Is Sexy

Hank delves into the scientific reasons behind why we are attracted to the people we're attracted to. It's complicated.Like SciShow on Facebook: SciShow on Twitter: for this episode can be found in the Google document here:, science, biology, sexual selection, evolution, darwin, sex, intercourse, mate, gene, peacock, human, survival, advantage, health, fertility, bilateral symmetry, waist, hip, testosterone, ratio, genetic, pheromone, immune system, major histocompatibility complex, MHC, offspring, attraction, sexy, attractive, origin of species, natural selection
Length: 03:29


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