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. Author manuscript; available in PMC: 2015 Jan 7.
Published in final edited form as: Physiol Behav. 2007 Oct 12;93(3):492–501. doi: 10.1016/j.physbeh.2007.10.008

Figure 2.

Figure 2

(Top) Testosterone treatment increased the frequency of fullshow displays by male tree lizards to male conspecifics relative to late-season sham surgery males, or castrated males treated with a blank implant. Progesterone treatment increased aggression frequency relative to castrated males treated with a blank implant. (Middle) A marginal positive effect of testosterone treatment on maximal aggression intensity was also observed. (Bottom) A non-significant trend showing a negative effect of testosterone treatment on latency to attack was consistent with data in Weiss and Moore [1]. Bars represent 1 S.E. Common letters above bars designate homogenous groups at α=0.05. See text for statistics.