Mexican gray wolf pups at Wichita’s Sedgwick County Zoo. The Mexican gray wolf is thought to be extinct in the wild and numbers only about 148 in captivity, making it one of the Earths rarest mammals.
Mexican gray wolves at the Rio Grande Zoo in Albuquerque, New Mexico. This zoo has bred the most wolves in captivity because the wolves are treated as wild animals at all times. Little handling is done.