Extinction May Not Be Forever

Scientific American: De-extinction. What if plants and animal species wiped out of existence could be brought back? That's the novel notion springing from recent advances in synthetic biology. The idea is simple. Find samples, like the mummified passenger pigeon discovered recently in a museum desk drawer, and collect its DNA. Compare said DNA to that of its closest living relatives to see what specific genes make a passenger pigeon unique. Then splice those crucial genes into the living relative's DNA strands to......

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