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Evolutionary psychologist David Buss criticized this hypothesis , stating that there is no evidence that most young men in most cultures use homoerotic behavior to establish alliances ; instead , the norm is for same-sex alliances to not be accompanied by any sexual activity .
 David Buss
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 David Buss