A report on PenisScrotum and Sex organ

Mallard pseudo-penis
Diagram of the scrotum. On the left side the cavity of the tunica vaginalis has been opened; on the right side only the layers superficial to the Cremaster muscle have been removed.
The sex organs of a green algae Chara are the male antheridia (red) and female archegonia (brown).
Females have corkscrew vaginas with many blind pockets designed for difficult penetration and to prevent becoming pregnant. This reduced the likelihood of fertilization by unwanted aggressors in favor of fitter mates.
Image showing musculature and inner workings of the scrotum.
The female genitalia of Lepidoptera
External male genitalia of a Labrador Retriever
Stages in the development of the male external genitalia.
Penises of minke whales on display at the Icelandic Phallological Museum
Human scrotum in a relaxed state (left) and a tense state (right)
Genitorinary system of a raccoon (Procyon lotor)
Penis of a human, with pubic hair removed to show anatomical detail
The spine-covered penis of Callosobruchus analis, a bean weevil

A penis (plural penises or penes ) is the primary sexual organ that male animals use to inseminate females (or hermaphrodites) during copulation.

- Penis

The scrotum or scrotal sac is an anatomical male reproductive structure located at the base of the penis that consists of a suspended dual-chambered sac of skin and smooth muscle.

- Scrotum

The Latin term genitalia, sometimes anglicized as genitals, is used to describe the externally visible sex organs: in male mammals, the penis and scrotum; and in female mammals, the vulva and its organs.

- Sex organ

Male sex hormones are secreted by the testes later in embryonic life to cause the development of secondary sex organs.

- Scrotum

The adult male of each vervet monkey species has a pale blue scrotum and a red penis, and male proboscis monkeys have a red penis with a black scrotum.

- Penis
Mallard pseudo-penis

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