The Hankans were a race of Humans who were genetically altered.
Biology[]
When Hankans hit puberty they experience a "mind fire". It is a life threatening fever which instinctively leads them to a forest where touching a glowing handprint transports them to Nirrti's lab. There Nirrti would cure their illness and release them back to the populace.
History[]
Hankans were originally Human from Earth, but were relocated to Hanka by a Goa'uld System Lord Nirrti. Nirrti was attempting to create a hok'tar for her to have a more powerful host.
When SG-7 discovered the planet, Nirrti released a virus to kill off the population to hide her experiments. Only one member survived, who was used as a Trojan-horse by Nirrti in an attempt to destroy the SGC.
Culture[]
Hankans appeared to be peaceful people. They were in a technological age, but not as advanced as humans.