Terror Fox

Terror Fox, a species of Fox on a dystopian alternate earth.
These foxes are sentient but are by nature brutal creatures.
They wage battle with the War Wolves during one of their four seasons, the season of blood.

The Season of Blood is where all mammals on the planet become the most feral and hunt one another. The blood from these hunts seep into the ground and feed the Dread Wood which shields the inhabitants from the (literally) burning rays of their young and strong sun.

War Wolves and Terror Foxes are the only two sentient species groups who willingly participate in the Season of Blood.