Blanket Bat

The Blanket Bat is a flying predator native to Ganymede, although a similar species is known to inhabit Io as well. Instead of killing its prey, the Blanket Bat absorbs the prey's energy until it's completely drained, leaving a weak helpless creature behind. The Blanket Bat's heart is located at the center of its body.

Appearances

 * "Tidal Moon", by Stanley G. Weinbaum and Helen Weinbaum (1938)