Mating
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In biology, mating refers to the pairing of either opposite-sex or hermaphroditic organisms for the purpose of sexual reproduction. For most species, mating is between two individuals of opposite sexe
Blue-tailed damselflies (Ischnura elegans) mating
Gray wolves mating
African spurred tortoises mating
Dogs mating
Sex organ
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A sex organ, also known as a reproductive organ, is a part of an organism that is involved in sexual reproduction. Sex organs constitute the primary sex characteristics of an organism. Sex organs are
Mating
…fusion of two gametes. One gamete from the female (egg) and one gamete from the male (sperm) is used for fertilization. Copulation is the union of the sex organs of two sexually reproducing animals for insemination and subsequent internal fertilization. Mating may also lead to external fertilization, as seen in…
The sex organs of the green algae Chara are the male antheridia (red) and female archegonia (brown).
Human male external sex organs (shaved pubic hair)
Human female external sex organs (shaved pubic hair)
The female genitalia of Lepidoptera