Ratatoskr

Ratatoskr is a Primal Parasite in form of a large, white squirrel, who climbs the bark of Yggdrasil. They feed on the bark of the mother tree and are able to bite rifts into the space-time-continuum, creating Glitches wherever their teeth strike, seemingly only for their own entertainment.

They are the main reason why Wind-Witherer and Niddhog are found in a long-standing quarrel with one another, given they have made it a habit to spread gossip about the other to each of them.

Trivia

 * In Norse mythology, Ratatoskr (Old Norse, generally considered to mean "drill-tooth" or "bore-tooth") is a squirrel who runs up and down the world tree Yggdrasil to carry messages between the eagle perched atop Yggdrasil, and the serpent Nidhogg, who dwells beneath one of the three roots of the tree.