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Salemicus comments on Open Thread, Jul. 13 - Jul. 19, 2015 - Less Wrong Discussion

5 Post author: MrMind 13 July 2015 06:55AM

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Comment author: Salemicus 14 July 2015 03:49:56PM 3 points [-]

Birds have a ZZ/ZW system where the male is the homogametic sex.

Yes, birds have testosterone. Mind you, women have testosterone. It's the elevated quantity of testosterone that leads to masculinity.