The Preservers

Scientific achievement

The Preservers, an enigmatic alien species known for interfering with primitive life and encouraging its evolution, came to Earth and performed genetic experiments on tribes of primitive hominids. The Preservers also took several samples of humanoid life and used them to seed other planets in the galaxy. Strangely, the Preservers took no interest in the Serpent People.

In this time, the Avians, a sub-race of humanity with bird-like wings believed by some to be the result of Preserver experimentation, are driven away by primitive humans and settle in a hidden valley in Greenland they call the Aerie. They adopt a policy of strict avoidance of other races.