The wildlife of Sri Lanka includes its flora and fauna and their natural habitats. Sri Lanka has one of the highest rates of biological endemism (16% of the fauna and 23% of flowering plants are endemic.
The mountains and the south-western part of the country, known as the "wet zone", receive ample rainfall (an annual average of 2500 millimeters). Most of the southeast, east, and northern parts of the country comprise the "dry zone", which receives between 1200 and 1900 mm of rain annually.
Sri Lanka is the Best for Big Game Safaris outside Africa. Its Big Five are the Elephant, Leopard, Sloth Bear, Blue and Sperm Whale. Few countries can rival its combination of Big Game safari animals, species densities and tourism infrastructure. It is undoubtedly the Ultimate Island Safari.
The largest seasonally recurring concentration of wild elephants takes place between July to September at Minneriya (and Kaudulla) National Park. Over 300 elephants may gather on the seasonally drying lake bed. Listed by Lonely Planet as among the Top Ten wildlife spectacles in the world. Uda Walawe National Park is the only site in the world where wild elephants are guaranteed on every game drive.
Yala National Park is the best place in the world for seeing and photographing leopards. Some areas in Block 1 have an average density of a leopard per square kilometer.
The Sinharaja Bird Wave is the largest, longest studied and offers the longest viewing of bird waves.