The passenger pigeon went
extinct almost 100 years ago. But new breakthroughs in genetics are
encouraging scientists to try to bring this bird species and other
extinct animals back to life. Scientists say reviving the passenger
pigeon, the woolly mammoth and other species long thought to be gone
forever will transform the way we think about extinction and life
itself. And the new technology is beginning to be applied to help save
endangered animals. Yet some wildlife conservationists warn so-called
“de-extinction” is expensive and will not come close to solving the
current extinction crisis.
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