00509    a2200169   4500001000700000020003000007020003100037041000800068100001800076250001000094300001000104490003700114830003700151040002500188245009600213260003000309115834  a9781426302657 (lib. bdg.)  a9781426303586 (trade bdg.)  apor  aPobst, Sandy.  a. ed.  a64 p.  aNational geographic investigates  aNational geographic investigates  aBR-BrIDEAcBR-BrIDEA10aAnimals on the edgebscience races to save species threatened with extinctionc Sandy Pobst  bNational Geographicc2008