Giant anteater (Myrmecophaga tridactyla)
This fast food specialist lives up to its name—lapping up as many as 35,000 ants and termites in one day. Using their sickle-shaped foreclaws and strong arms, anteaters break open tough insect-filled nests. Then, using their long, sticky tongues, they lap up fleeing ants and termites. The insects bite, sting, and shoot toxic chemicals at the hungry anteaters, but dense hair helps repel angry insects just long enough for a quick snack.