Resurrecting extinct species raises ethical questions
New book ponders technical and philosophical challenges of de-extinction
![illustration of mammoths](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/10/102817_ts_reviews_necrofauna_main.jpg?fit=860%2C460&ssl=1)
BRINGING ‘EM BACK ALIVE Scientists think they have the tools to transform elephants into woolly mammoths (illustrated) and reverse extinction. A new book explores the promise and pitfalls of de-extinction.
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