The nuances of cloning wildlife
Slate is broadcasting a review I wrote for Issues in Science and Technology about a new book called Cloning Wildlife . Sample...
“As the costs of DNA sequencing keep coming down, field biologists have been discovering that hybridization is rampant in nature and indeed may be one of the principle mechanisms of evolution, which is said to be speeding up in these turbulent decades. Friese notes that “as an institution, the zoo is particularly concerned with patrolling the boundaries between nature and culture.” Defending against cloned hybridization, zoos think, is defending nature from culture. But if hybridization is common in nature, then what?
“Soon enough, zoos will be confronting the temptation of de-extincted woolly mammoths (and passenger pigeons, great auks, and Carolina parakeets, among others). Those thrilling animals could be huge draws and deeply educational exemplars of new possibilities for conservation. They will also be, to a varying extent, genomic hybrids—mammoths that are partly Asian elephant, passenger pigeons that are partly band-tailed pigeon, great auks that are partly razorbill, Carolina parakeets that are partly sun parakeet. Should we applaud or turn away in dismay? I think that conservation biologists will look for one primary measure of success: Can the revived animals take up their old ecological role and manage on their own in the wild? If not, they are freaks. If they succeed, welcome back.“