They come from constellation Vela, near the star Suhail Al Muhlif.
They grow up to 2 meters high (6') and live up to 200 years.
They can shape-shift and are very hard to detect.
When they shape-shift the only thing they cannot change is the size and colour of their eyes.
They are one of the oldest known races.
They do abduct humans.
Last seen on earth in July of 2008.