TY - BOOK N2 - When wolves were eliminated from Yellowstone National Park the natural system was out of balance. Shows the return of the wolves to the park and the natural balance being restored. AB - When wolves were eliminated from Yellowstone National Park the natural system was out of balance. Shows the return of the wolves to the park and the natural balance being restored. T1 - When the wolves returned :restoring nature's balance in Yellowstone / DA - ©2008. CY - New York : AU - Patent, Dorothy Hinshaw. AU - Hartman, Dan, AU - Hartman, Cassie, CN - QL737.C22 CN - QL737.C22 PB - Walker : PB - Distributed to the trade by Macmillan, PP - New York : PY - ©2008. ID - 1357251 KW - Gray wolf KW - Gray wolf KW - Gray wolf SN - 9780802796868 SN - 0802796869 SN - 9780802796875 SN - 0802796877 SN - 0329728733 SN - 9780329728731 TI - When the wolves returned :restoring nature's balance in Yellowstone / ER -