The Emotional Lives of Animals
4 The Love Of Animals
MARCH 17, 2011
Elephants, whales, hippopotamuses, giraffes, and alligators use low-frequency sounds to communicate over long distances, often miles; and bats, dolphins, whales, frogs, and various rodents use high-frequency sounds to find food, communicate with others, and navigate. He often tried to approach them as if they were friends.
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