Well actually,I heard that tigers are pretty much f**ked in a few years. But I have an idea to save them. BAsically, the idea is an equivalent of the human genome project for them and several other very endangered species, that way if they go extinctm they'll have the blueprints to bring them back when the technology is right. And to ensure healthy genetic variation in the species, several genes could be tweaked ever so slightly in several different variations so that there would be the right amount of genetic variability to keep the species alive.
That is a way Dreamer, but I would much rather just have them be saved by people just getting used to the fact that they shouldn't kill them anyway. Honestly, it's just really stupid, and I don't see why humans do have to kill other animals for sport.