!Question: There is no exact data on the life span of a wild wolf. Then how long does a wolf in the zoo normally live? [Quest _419_GetaPet wrong|3-6 years] [Quest _419_GetaPet wrong|6-9 years] [Quest _419_GetaPet wrong|9-12 years] [Quest _419_GetaPet right|12-15 years] [Quest _419_GetaPet wrong|No answer]