Got Mice
(Ermine/Long-Tail Weasel)
The long tail weasel has a neat little trick that helps him
remain the title holder of “The Fiercest Predator” in Yellowstone.
 
His coat changes color from brown in the summer, to white
in the winter. This brilliant system of camouflage allows him to 
sneak up on his prey all year long. He holds this title because he
consumes 40% of his body weight each day!