The two kinds of Orangutan – the Bornean and the Sumatran Orangutan – have both experienced sharp declines in populations. A century ago there were probably more than 230,000 orangutans in total, but the Bornean Orangutan is now estimated at about 104,700 based on updated geographic range and the Sumatran about 13,846. They are primarily threatened by habitat loss from human-caused deforestation for palm oil.