[BigGreenJorts]

While in most cases I fully agree with this, I think there are some key examples that were simply lost to over-hunting/poaching. Ones that comes to mind are the various white rhino species, Dodos, some Mega turtles of Galapagos mentioned in the article. In the case of the Rhinos, there has been a concerted effort to maintain their habitat, but that also makes protecting against poachers near impossible. In the case of artificial repopulation efforts like these, they are protected by the breeding program, with a lofty goal of producing enough specimen to return to their original habitat.

I do think returning the Quagga or Whooly Mammoth is probably pointless, but they are high profile proof of concept.