Another excuse why the Angonoka could possibly go extinct would be that the species is concentrated only in one area. They don't seem to be dispersed, meaning something including intense weather and condition could wipe the species out. The released bush pig is the principle predator on the angonoka tortoise; https://martinubvwj.activosblog.com/38706760/little-known-facts-about-angonoka-tortoise-for-sale