Male

Male denotes an animal which produces [sperm cell]?s in order to reproduce. The male is one half of a heterogamous reproduction system, where the female is the other half.

What actually differentiates a female from a male is not always apparent, and in some cases more a question of definition than anything else. See for example seahorse?.

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'Male' and 'female' designate reproductive structures in plants, so the concept is not just limited to animals.