Mini creatures with mighty voices know their audience and fo

From insects to birds to bats to frogs, these little loudmouths have found ingenious ways to deliver their messages at high volume.

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Puerto Rico , United States , Hawaii , Hawaiian , America , Hawaiians , , South America , North America , Animal Calls , Animal Communication , Cats , Iology , Birds , Cars , Hearing , Insects , Hound , Ultrasonic ,