Deltans are a humanoid species native to the planet Delta IV. All Deltans have a totally bald head, but do have slight eyebrows. Deltans are also highly developed sexually, so much so that it is said that a normal Terran would be unable to survive a sexual experience with a Deltan. All Deltans wishing to join the Federation on mixed crew ships must take an Oath of Celibacy. This is meant to prevent any unfortunate incidents while on board any Starship. As well as being highly developed sexually, they are also highly developed socially.