Antarean

The Antareans are a sapient spacefaring species of short, brightly luminescent humanoids from the planet Antarea. They are known to have lifespans exceeding thousands of years and possess the ability to fly and to conceal themselves in cocoons in order to survive for extended periods in stasis under water.

Biology
The Antarean body emanates a form of energy known as life force, which can be transferred to other beings voluntarily or involuntarily; and they need to build large stocks of it in order to emerge from cocoons or to survive trips through space.

It is implied that members of this species are biologically immortal, although they can still die if their life force is drained. They are also still susceptible to at least some non-lethal diseases, for instance, displaying signs of illness after consuming Earth food.

History
A mostly peaceful race, 10,000 years ago they had an outpost on Earth, on the region known as Atlantis, which collapsed under the ocean due to a cataclysm. Unable to evacuate everyone, a ground crew of twenty was left behind, cocooning themselves at the bottom of the ocean and waiting for the rescue that would take thousands of years to arrive.

Appearances

 * Cocoon (1985)
 * Cocoon: The Return (1988)