Return to the sea : the life and evolutionary times of marine mammals

Annalisa Berta ; illustrated by James L. Sumich and Carl Buell

"Return to the Sea" portrays the life and evolutionary times of marine mammals - from giant whales and sea cows that originated 55 million years ago to the deep diving elephant seals and clam-eating walruses of modern times. This fascinating account of the origin of various marine mammal lineages, some extinct, others extant but threatened, is for the non-specialist. Set against a backdrop of geologic time, changing climates, and changing geography, evolution is the unifying principle that helps us to understand the present day diversity of marine mammals and their responses to environmental challenges. Annalisa Berta explains current controversies and explores patterns of change taking place today, such as shifting food webs and predator-prey relationships, habitat degradation, global warming, and the effects of humans on marine mammal communities.

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この本の情報

書名 Return to the sea : the life and evolutionary times of marine mammals
著作者等 Berta, Annalisa
Sumich, James L.
Buell Carl
出版元 University of California Press
刊行年月 c2012
ページ数 xiii, 205 p.
大きさ 24 cm
ISBN 9780520270572
NCID BB14211898
※クリックでCiNii Booksを表示
言語 英語
出版国 アメリカ合衆国
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