Ants sleep about three hours, then stretch and appear to yawn, just like people do when waking.
People can carry a weight approximately equal to themselves. Ants can carry a weight 100 times heavier than themselves. Ants are the creatures with the biggest brains compared with their body size. If an ant were as big as we are, they could carry 10 automobiles on their backs and probably solve calculus problems simultaneously.
In Africa there are societies of army ants so vicious that if you leave a horse tied up near them, they will eat the entire horse within a few days.