Xylotrupes socrates: part rhinoceros, part tank, all attitude. Males use their long curved horns to flip rivals off branches because nothing says "I'm the biggest and the toughest" like tossing your competition out of a tree. They fight with their distinct horns for mates and can lift 100 times their own body weight. These beetles are nocturnal, mostly harmless to humans, and technically strong enough to carry more than a carload of their own weight if scaled up.