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Do Whales Have Belly Buttons?: Questions and Answers About Whales and Dolphins
Do Whales Have Belly Buttons Questions and Answers About Whales and Dolphins Author:Melvin Berger, Gilda Berger, Higgins Bond (Illustrator) Provides answers to such questions about various species of whales and dolphins as "Do all whales have teeth?", "How long do most whales live?", "Why do dolphins whistle?", and "Can dolphins save humans?"