Bounding around on giant hind limbs, using its giant tail to balance, the well-named giant kangaroo rat of Southern California is half Pokemon, half Mighty Mouse. It emerges at night to forage on seeds, building up underground stores. When it’s not busy foraging, it’s busy scrapping with its peers to claim territory. It dominates these grasslands, outcompeting smaller rodents while doing its best to dodge foxes and snakes. But the giant kangaroo rat isn’t invincible.