In pigs this organ is corkscrew shaped while that of an echidna has keratinised spines and four heads.
While fish do not possess this organ, some species have modifications to their pelvic or anal fins for a similar effect, and insects achieve the same functional end with an aedeagus [ee-DEE-uh-gus]. In ducks, redistribution of lymph to this organ can provide a similar function to the baculum and corpus cavernosum seen in mammalian species. In pigs this organ is corkscrew shaped while that of an echidna has keratinised spines and four heads. For 10 points, name this male sexual organ used to deposit sperm into the female.
While fish do not possess this organ, some species have modifications to their pelvic or anal fins for a similar effect, and insects achieve the same functional end with an aedeagus [ee-DEE-uh-gus].
{Penis}