In the cool of the desert night, the small gray-furred creature emerges from the safety of its burrow in search of food. The bilby (Macrotis lagotis) has a surprising combination of features: its ears are large and rabbit-like, but hairless, its snout is pointy and pink-tipped, and its characteristically marsupial pouch holds between one and three baby bilbies, or joeys. Conservationists have protected bilbies in conservation havens designed to keep invasive predators out, but now some scientists say it’s time to start letting a few of those predators back in. “If we’re going to ever reestabli…