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in parts of West Africa, where the operation is performed at about 8 years of age, the prepuce is dipped in brandy and eaten by the patient; in other districts the operator is enjoined to consume the fruits of his handiwork, and yet a further practice, in Madagascar, is to wrap the operation specifically in a banana leaf and feed it to a calf.

Upper Saddle River, New Jersey: Pearson Education, Inc.

Torchia, The Developing Human: Clinically Oriented Embryology 10th Ed.

The following table shows how common various erection angles are for a standing male, out of a sample of 1,564 males aged 20 through 69.

Circumcision has been suggested to affect semen displacement.

If sperm competition results in the rival male's sperm fertilising the egg, could occur.

The is the visible ridge between the halves of the penis, found on the ventral or underside of the penis, running from the meatus opening of the urethra across the to the area between scrotum and.

"Adaptation to Sperm Competition in Humans".

who undergo have their penis surgically modified into a vagina via.