In the fictional universe of the science fiction TV series Stargate SG-1, the Jaffa (pronounced j'FAH) are modified humans genetically engineered by the Goa'uld in antiquity to serve as soldiers and as incubators for their young. The main difference between a Jaffa and a normal human is an abdominal pouch accessible from the outside by a X-shaped slit. The pouch serves as an incubator for a larval Goa'uld, known as a prim'tah, which improves their ability to successfully take a host upon maturation from 50% to nearly 100%. The Goa'uld have a device capable of quickly transforming humans into Jaffa. The larval symbiote grants the Jaffa enhanced strength, health, healing, and longevity (in excess of 150 years). However, the presence of the symbiote also replaces the Jaffa's immune system, and if removed the Jaffa will die a long and painful death that can only be avoided by lifelong regular injections of the drug tretonin which replaces the prim'tah's functions in the jaffa body. The Jaffa equivalent of puberty is the Age of Prata, at which time a prim'tah must be implanted. Jaffa do not require sleep, but must engage in a form of meditation called kelnorim in order to synchronize [ - ]

In the fictional universe of the science fiction TV series Stargate SG-1, the Jaffa (pronounced... [ + ]