It can be difficult to determine the exact number of lemurs left in the world, as new species are continuously discovered. However, most species are considered endangered and critically endangered and one species is near... More »

As of 2015, the Australian Koala Foundation estimates that there are less than 80,000 koalas left, with the possibility of that number being as low as 43,000. In 2012, the government of Australia changed the status of th... More »

As of 2014, there are around 29,000 rhinos left in the wild, according to statistics provided by Save The Rhino. This number is down from 70,000 rhinos in 1970 and 500,000 rhinos in the early 20th century. The majority o... More » Pets & Animals Mammals

There is no estimate on the number of monkeys in the world, but there are 260 known species of monkeys, which are divided into two categories: Old World and New World. Old World monkeys reside in Africa and Asia, and New... More »

There are more than 260 known species in the world, split into two groups: new world and old world monkeys. Some examples of new world monkeys are spider monkeys, tamarins, howler monkeys and marmosets, while the old wor... More »

The pygmy marmoset is the smallest species of monkey in the world. Fully grown, they only weigh 4 to 5 ounces and are 6 inches long. The only primates smaller than pygmy marmosets are pygmy mouse lemurs and pygmy tarsier... More »

As of 2014, there are more than 260 different species of monkeys in the world. Monkeys are often divided into old world monkeys and new world monkeys, depending on where they live in the world. Monkeys should be distingu... More »