Whales and Dolphins in Question

Whales and Dolphins in Question pdf epub mobi txt 电子书 下载 2025

出版者:Harpercollins
作者:Mead, James G./ Gold, Joy P./ Nicklin, Flip (PHT)
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页数:224
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出版时间:2002-2
价格:CDN$ 31.50
装帧:Pap
isbn号码:9781560989806
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How many fingers do whales have? Why do whales strand on beaches? Do dolphins protect humans from sharks? What does DNA reveal about the ancestry of cetaceans? This comprehensive book is a collective response to thousands of letters and phone calls received annually by the Smithsonian's National Museum of Natural History. Students, teachers, and scientists all have amazingly varied questions about whales and dolphins, and the most revealing inquiries are presented here with detailed answers.

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