There are so many species that could be saved with far less high-tech means. Allowing them to be kept as pets could be a massive boost. You only need to look at

There are so many species that could be saved with far less high-tech means. Allowing them to be kept as pets could be a massive boost. You only need to look at american big cats to see the success. A few regulations to promote genetic health and you'll take a load of animals of the critically endangered list.