It was long assumed that tool use was uniquely human, but tool use has now been found across many primates. Monkeys and apes not only use sticks to fish termites; they also use rocks to break open nuts, grass to floss, moss for sponges, clubs to smash beehives, and even twigs to clean their ears. In the years since Goodall studied these chimps, tool use has been found all over the animal kingdom. Elephants pick up branches with their trunks to swat flies and scratch themselves. Mongooses use anvils to break open nuts. Crows use sticks to spear larvae. Octopuses gather large shells to make
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