According to the World Wildlife Fund, there are more than 20,000 southern white rhinos in the world, but only four northern white rhinos, as of 2014. The majority of these two subspecies, which are genetically different, live in South Africa, Namibia, Zimbabwe and Kenya. Southern white rhinos were once believed to be extinct, but a population was discovered in South Africa during the late 1800s. They are no longer classified as "endangered"; they are now "near threatened." However, the only known wild northern white rhinos live on a national park in the Democratic Republic of the Congo. The major threat to these animals comes from poachers who are after the rhinos' horns.