Cherub (Homestuck)

Cherubs are a race of aliens from the webcomic Homestuck.

Biology
Cherubs are a race of green skinned humanoids with skull-like heads. Young cherubs have spiral patterns on their cheeks, the color of which represents that cherub's blood color which varies between individuals of the species. Adult cherubs have colored circles in place of the spirals. Also, mature females have wings. They also have sharp teeth, claw-like hands, and a forked tongue. The only two cherubs known are two different personalities, Caliope and Caliborn who share the same body. It has been suggested that all cherubs are born with split personalities, with one personality eventually killing the other and taking full control of the shared body once the cherub reaches maturity.