The Hydra is a ancient extraterrestrial being that came forward in time from the past. Scientists speculate it is a predecessor to the race of Ghidorah. The Hydra unlike most Ghidorah had eight heads instead of three
The Hydra is from a planet known as Hhyid in which the gravity is very heavy so The Hydra are swifter on planets such as Earth. Hydra evolved from a even more ancient species known as Dragons which only had one head.