Urbankan

The Urbankans are a species introduced in Four to Doomsday.

Physical Characteristics
The Urbankans are green skinned humanoids native to Urbanka. They are bald with lumpy features and two bumps above their eyes. They can also secrete a special poison out of glands on their necks. This poison is super effective and can shrivel up organic matter.

Technology
The Urbankans have very advanced technology. One their most important development is their android creation. These androids can be made in a variety of appearances, most commonly a human-like form. They can also have a varying amount of computer chips, with the more intelligent androids having more chips then less intelligent ones. These androids are much tougher then organic life, though they can be stopped when the computer chips are removed. One of these technological advances are the Monopticons, floating robots that can be used for surveillance.

The Urbankans also have spaceships which can nearly reach the speed of light, with them getting faster as time went on.

History
The Urbankans were slowly being converted into androids over 40,000 years. During this time, their leader Monarch made 4 trips to Earth. Though the response was always hostile, the Urbankans were able to capture a few humans. These humans were also converted into androids and were allowed to stay. As well, the speed of the trip was increased each time as more and more improvements were made. Monarch planned to finally discover the secret to faster-then-light travel, whereby he would go back in time to meet God, which he believed would be himself.

Back on Urbanka, the planet was continuously mined for more raw materials for the androids. Eventually, by the 700s, the planet was uninhabitable, meaning all 3 billion Urbankans had to move. They decided to go back to Earth and strip mine it as well. Despite this, Monarch was stopped and the human androids decided to go their own way.