In California today, a plant once thought extinct was rediscovered. In New Zealand, a bug pulled off the same feat. And, last month, it was the ivory-billed woodpecker. But none of those stories can top the efforts of Australian researchers to not just find a once-thought extinct animal, but rather to bring one back from the dead. Well...sort of. If the Australian researchers get their way, even already extinct animals may prove far more resilient than once thought. The researchers have revived a program to clone the extinct Tasmanian tiger.