Did you know that the tongue of blue whale can weigh as much as an elephant? How about that blue whales' songs can be louder than the engine of a jet plane? Or that, with the right equipment, you can hear a blue whale's heartbeat two miles away? Perfect for all animal lovers--and blue whale fans in particular--this book is filled with all the facts you need to know to become a blue whale expert! Where are blue whales found? What's it like to be a blue whale? Why are blue whales endangered, and who has been working hard to save them? Read this book and find out how you can help save the blue whales!
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