In these groups, hermaphroditism is a normal condition, enabling a form of sexual reproduction in which either partner can act as the "female" or "male".
For example, the great majority of tunicates, pulmonate snails, opisthobranch snails and slugs are hermaphrodites.
Clinically, medicine currently describes intersex people as having disorders of sex development, a term vigorously contested.
have criticized medical interventions designed to make intersex bodies more typically male or female.
Upon fertilization of the two ova by two sperm cells (one carrying an X and the other carrying a Y chromosome), the two fertilized ova are then fused together resulting in a person having dual genitalial, gonadal (ovotestes) and genetic sex.
Another common cause of being intersex is the crossing over of the SRY from the Y chromosome to the X chromosome during meiosis.
When spotted hyenas were first discovered by explorers, they were thought to be hermaphrodites.
Thus, testicular and ovarian tissues will both be present in the same individual.According to Ovid, he fused with the nymph Salmacis resulting in one individual possessing physical traits of male and female sexes; Alexander ab Alexandro stated, using the term hermaphrodite, that the people who bore the sexes of both man and woman were regarded by the Athenians and the Romans as monsters, and thrown into the sea at Athens and into the Tiber at Rome.This contrasts simultaneous hermaphrodites, in which an individual may possess fully functional male and female genitalia.Intersex describes a wide variety of combinations of what are considered male and female biology.Intersex biology may include, for example, ambiguous-looking external genitalia, karyotypes that include mixed XX and XY chromosome pairs (46XX/46XY, 46XX/47XXY or 45X/XY mosaic).