 | dominance and, 32, 6063
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 | enjoyment of, 60
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 | high testosterone, various species and, 36
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 | motivations,, 6061, 115, 188189
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 | soldier's frame of mind, 131
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 | testosterone and readiness, 90, 106, 189
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 | Fish
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 | cichlid, fluctuating testosterone levels in, 88
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 | coral, sexual versatility and, 39
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 | plainfin midshipman, care of young, 120
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 | Fisher, Helen, 43
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 | 5-alpha-reductase, 8
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 | Flame, professional wrestler, 141
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