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Puberty Defining - Anatomy & Physiology (view source)

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== Age when Behavioural Traits are Expressed ==

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* Generally acquire reproductive behavioural traits such as mounting and erection a long time before they acquire the ability to ejaculate and produce spermatozoa.

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* Behavioural traits are easy to determine, as mouting behaviour and erection can be easily observed.

== Age at First Ejaculation ==

Lwilkie

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