Amur leopard, the rarest cat on earth. There are about 30 left in nature. Quote from this website : www.altaconservat... It is only found in the Russian Far East and North East China and there are fewer than 40 individuals left in the wild. This makes the Amur leopard one of the world’s most endangered big cats and for this reason it is listed as Critically Endangered by the IUCN, and CITES Appendix I for protection status.