Hermaphrodite

A hermaphrodite is any organism with both male and female reproductive organs which produce both male gametes (sperm) and female gametes (ova). In some animals, the simultaneous hermaphrodites, both male and female organs are functional at the same time. In other animals, the sequential hermaphrodites, one sex develops at one time, which later develops into the other sex. Examples of both strategies are found naturally, especially in the invertebrates, and for many creatures, hermaphrodism is the only method of reproduction.