Hard enough being a scorpion without glowing neon green every time someone points a UV torch at you.
Fun fact: They can slow their metabolism to survive on a single insect per year if food is scarce.
Absolute unit that nearly got wiped out and then ended up on the back of a nickel.
Fun fact: Yellowstone's entire herd — the only wild, genetically pure bison in America — descends from just 23 animals.