The tropical rain forest comprises Arunachal Pradesh, Assam, Meghalaya, Nagaland, Tripura, Western ghats, West Bengal and Andaman and Nicobar Islands, which receive heavy rainfall. These areas are covered with evergreen forests. These forests have three storeyed vegetation. The upper storey consisting of tall trees which forms the top canopy receiving most of the sunlight. Trees of lesser height form the middle storey. The thick, dense and rich environment is capable of providing food and shelter to a host of animals of all kinds-the ground dwellers as well as tree dwellers.
In the south Nilgiris, Annamalai, Palani hills and other south Indian ranges have extensive grass land dotted with patches of dense evergreen forests. They provides shelter to elephants, gaur and other large animals. Himalayan animals such as tahr, pine marten and European Otter, live here. The Vegetation and animals of the region show affinity height with high altitude forests of Assam. The forests of Andaman