The recent claim the long extinct dire wolf was resurrected made headlines around the world. But bioethicists and ecologists say there are ethical concerns.

Colossal Bioscience says it has “de-extincted” the dire wolf, but other scientists disagree and say more important conservation science is being lost in all the hype

Created by editing the gray wolf genome, two dire wolves are the subject of vastly-differing opinions on what it means to bring back an extinct species.​​​​​