Return to the Sea: The Life and Evolutionary Times of Marine Mammals

by Annalisa Berta (Author)

• New

  Hardcover
  2012

  $35.71

  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 title gives an account of the origin of various marine mammal lineages, some extinct, others extant but threatened.