- Greenish blue skin
- Small lifeforms
- Fly
- Arms, wings, a tail, but no legs
- Sharp teeth
- Emit a high screech noise right before opening their fissures
- Stored a great deal of Nucleogenic energy, enough to power a starship
- Survived in our dimension for a brief time;
- If they stayed too long, they would die
- Skin contact with hominoid lifeforms causes a lethal thermolytic reaction
- Called "spirits of good fortune" by the Ankari
- 2376: Made first contact with the Federation via the USS Equinox;
- Starfleet discovered that their remains could enhance their speed;
- Continued summoning & killing them to power their warp drive
- Fought back, severely damaged the ship & killed many crew members
