More than a century since they were declared extinct in the Australian state of New South Wales, the bilby, a vulnerable marsupial with rabbit-like ears, has been reintroduced into a large, predator-free area in a remote desert park 1,200 kilometers northwest of Sydney. The release is part of a new breeding program at Taronga Western Plains Zoo in New South Wales state. The release of 10 bilbies is a bold attempt to turn back the clock to a time in Australia when native animals weren’t savaged by feral cats and foxes. Since European colonization, the bilby population has fallen by 80%. Rabbits, another invasive species, also compete with the marsupials for food and shelter. They face other threats from land clearing and bushfires. Bilbies survive in the wild only in parts of central and we...