A group of white rhinos, the world’s second-largest land mammal and once one of its rarest, is returning to its old stomping ground — Kenya’s Meru National Park, a reserve once so ravaged by poachers that all but one of the white rhinos that lived there were hunted to death. (The remaining one was removed for protection.) Thanks to international and national efforts to improve security at the park, the area will once again be a viable home for indigenous species; in addition to the rhino, Kenyan authorities will re-import Grey’s and Burchell’s zebras later this year. Michael Wamithi, the East Africa director of the International Fund for Animal Welfare, said, “Meru National Park is now being given a new lease on life after almost all its wildlife was wiped out by poaching and disease.”