They're three Clans called: SeaClan, ForestClan, and MoorClan. As in the name, they live by the sea, in the forest, and on the moor. When a cat is a kit they have a prefix then the word kit at the end, like: Sunkit, Goldkit, or Leapkit. When the cat is an apprentice it's the same thing just with -paw at the end, like: Sunpaw, Goldpaw, or Leappaw. When a cat is a full warrior its name has a prefix than a suffix, like: Sunpool, Goldtail, or Leapheart. The leader has a prefix with -star at the end.