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. 2009 May 15:163–205. doi: 10.1016/B978-1-4160-0009-9.50011-6

Figure 4-8.

Figure 4-8

Mounting play behavior. Adolescent ferrets' play behavior also imitates sexual behavior, with juvenile male ferrets exhibiting higher levels of neck biting and “stand-over” behavior than females. Sex differences in the expression of prepubertal play behavior of ferrets apparently result from the differential exposure of males and females to androgen during the postnatal period.

(Courtesy Peter Fisher.)