Rest in peace, big guys
But it depends on the species and the context
Contrary to many reports
A bizarre plan to save humanity
From reviving extinct species to hunting for dark matter, can a single scientist transform biology--and our lives?
Scientists have the tools to bring back extinct species. Here's how they plan to do it.
But don’t expect mammoth clones anytime soon
Maybe resurrecting cows' extinct ancestor isn't such a great idea
A project to save the chestnut tree is gaining momentum—and opponents
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