Tsukamaane do not need air to breathe, nor do they experience vacuum conditions with any hardship. Their fur is thick enough to stave off even the cold of the empty cosmos.

A tsukamaane has a sharp sense of smell that can operate even in a near vacuum. They have impeccable timing for things in orbit and in cosmic motion, thereby able to pilot ships through the cosmos with skill. Their unerring skill at piloting works best if they are in sync with others of their kind, and if three or more are together, they can tap into what they call "longsight," allowing them to see the cycles of cosmic objects.

Tsukamaane who are related recognize each other immediately, and they can form a metaphysical bond with a related tsukamaane by touching foreheads. These bonds allow them to communicate over vast distances and to use the aforementioned longsight if three or more are involved.

As tsukamaane get further from Shem and her moons, they begin to change randomly depending on what celestial bodies they are nearest.