Lost, But Perhaps Not Gone Forever | GenomeWeb

Only one species has been brought back from extinction, but it — the Pyrenean ibex — didn't last very long the second time around, just minutes, writes the New York Times. Researchers had used a cloning technique to try to bring the ibex back, and in similar attempts, Australian researchers are working to clone the southern gastric brooding frog, which, as its name suggests, used its stomach as a womb.

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