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How much bird is there, anyway?

10,000 Birds

A single large spider monkey, which might be out of view, equals a large number of lightly built and small birds which may be scattered across the landscape. Those mammals consist of the previously mentioned fossorial members of Insectivora, Rodents, and bats. This is also because mammals are large.

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The Emotional Lives of Animals

4 The Love Of Animals

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 stood up and quickly looked around.

Emotional 100