One of my favourite animals, the Amur leopard, is (in captivity, at least) making some headway in population restoration.
These cats in the wild have a population of about 30-35 known. I’ve been lucky enough to see one in captivity at a local zoo; despite people’s conflicting thoughts on zoos, I’d be sad if they died out before I ever got to see one, and they’re clearly flourishing better in captivity than in the wild. Just a few years ago with the release of the Planet Earth series, they were about 40-45 known.
I’d love to be part of a team that works to repopulate this critically endangered species.