- Multiple folds on their nose
- Tentacles used for feeding on the lower portions of their faces
- No vocal cords, instead communicated by telepathy
- Two brains: a forebrain in the head & a hindbrain held in their hands
- Hindbrain connected by an umbilical cord-like connection to their faces
- Evolved on their homeworld in a naturally telepathic, communal society
- 42nd Century: Widely sold as a slave labor species throughout human space
- 4126: Set free by the Tenth Doctor & Donna Noble, return to their homeworld
- Become known as respected caretakers, advisors, & prophetic observers
