Ratatoskr

“Drill-tooth.” A squirrel who runs endlessly up and down the trunk of Yggdrasil, carrying messages—specifically insults and provocations—between the eagle at the crown and the dragon Níðhöggr at the roots.

Ratatoskr doesn’t attack the tree directly. Instead, he makes sure the conflict between the forces at the top and bottom never resolves. He is the being who escalates tension through gossip, who keeps the cosmos from finding peace.

In Norse mythology, Ratatoskr is often portrayed humorously—a busybody squirrel among cosmic forces. But the humor has a point: in a universe where everything either sustains or destroys, Ratatoskr is the one who ensures destruction continues.