Higahers live on Earth and in outer space. They are first seen by Susanna on Yavin 4 and she has two higahers that have life debts to Susanna. One Daisuke and the other Ursa with varying ways how they became life debt to her. Daisuke by raising him from a baby and Ursa by saving her from certain death. The have a base height but can grow exponentially for a person to ride or to protect. Males are larger than females. They are sentient beings despite being on 4 legs and Susanna confused them for being grey wolves upon first seeing them and thought that grey wolves were all around until Luke told her otherwise.