Probat

Probats are a vampire-like species from the planet Probat.

Ecology
The Probats’ unique digestive system turns food into a strange, highly-reactive substance akin to Energon.

Powers and abilities
Probats are excellent echolocators, capable of maneuvering in the lightless caves and dark nights of their homeworld.

Culture and society
Probats are a modest and mostly peaceful unprepossessing species at first glance, beyond the unusual fact that they are functionally blind.

When the Cybertronians discovered their world, they established a mining operation upon learning of the energy sources on Probat. They also uplifted the Probats, thereby advancing their culture technologically.