Nepal has a very typical habitat, mainly the terai and mountainous habitat. This is one of the most fertile lands in the world after the Sundarban Delta. Nepal is flooded by various rivers such as the Kosi river. This unique landscape has given rise to riverine grasslands and also small riverine islands. Cow, which is sacred to Hindus, has been declared the national animal of Nepal. The fauna of this region has also adapted accordingly. The fauna of this region is the Bengal Tiger, Indian Leopard, The Asian Elephant, the One-Horned Rhino, the mugger crocodile, and the gharial. The barasingha(swamp deer) and the hog deer are also found here along with the blackbuck, sambar deer, and also the chital. On higher altitudes, The Himalayan Brown Bear and The Himalayan Black Bear are Present. The Asiatic Cheetah also might have been an in Nepal, in the riverine grasslands, but now it is extinct. Nepal has many world-famed National Parks. Many of Nepal's Nepal Park is connected to India and thus there is a lot of genetic inflow between many animals such as Rhinos and Elephants.
Royal Chitwan National Park- Chitwan means, ' the heart of the Jungle. It covers an area of 952.63 km2 (367.81 sq mi). The Royal Chitwan National Park is the first National Park of Nepal which was established in 1973. It was untouched because the place had many malaria cases. Humans were present but in very small populations. In the 1960s, when Malaria got eradicated, it became a hunting reserve, and later, it became a National Park, so it can be said that it is a well-preserved area. The park is known for its rhinos, elephants, Gaur and also it's Tigers. Chitwan has the largest population of Indian rhinoceros in Nepal, estimated at 600 of 650 individuals in total in the country as of 2015.
2. Royal Bardia National Park-The Royal Bardia National Park covers an area of about 970 km2. It is the Babai river that bisects through the national park. This region is mainly part of the swampy Terai region. This region comprises many riverine grasslands which is a typical feature of all Nepal forests which are close to India. The major fauna of this region includes the Bengal Tiger, Indian Leopard, Indian-One Horned-Rhino, Asian Elephant, hog deer, chital deer, and Wild Boar.