​Tanzania contains some 20 percent of the species of Africa’s large mammal population, found across its 14 national parks, reserves, conservation areas and marine parks, spread over an area of more than 42,000 square kilometres (16,000 sq mi) and forming more than one-third of the country's territory.
Tanzania’s fauna is notable both for sheer numbers and variety, with representatives of 430 species and subspecies among the country’s more than four million wild animals. Tanzania has over 60, 000 insect species, about 25 types of reptiles or amphibians, 100 species of snakes and numerous fish species. Complementing this are over 1000 species of birds.

ANIMALS
Elephants (Tembo) are the largest land animals now living. The elephant's gestation period is 22 months, the longest of any land animal. At birth it is common for an elephant calf to weigh 120 kilograms (260 lb).
The Cheetah (Duma) is an atypical member of the cat family (Felidae) that is unique in its speed, while lacking climbing abilities.It is the fastest land animal, reaching speeds between 112 and 120 km/h (70 and 75 mph) in short bursts covering distances up to 460 m (1,500 ft), and has the ability to accelerate from 0 to 103 km/h (64 mph) in three seconds, faster than most supercars.
The hippopotamus or hippo, (Kiboko) is the second largest land animal (after the elephant) and the heaviest extant artiodactyl, despite being considerably shorter than the giraffe.
HIPPO/HIPPOPOTAMUS (KIBOKO)
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CHEETAH (DUMA)
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LION (SIMBA)
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​​​ELEPHANT (TEMBO)​​
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The lion (Simba) with some males exceeding 250 kg (550 lb) in weight, it is the second-largest living cat after the tiger.A pride of lions consists of related females and offspring and a small number of adult males.
The leopard, (Chui) is a member of the Felidae family and the smallest of the four "big cats" in the genus Panthera, the other three being the tiger, lion and jaguar.
​LEOPARD (CHUI)
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RHINOCEROS (KIFARU)
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Rhinoceros (Kifaru) is often colloquially abbreviated rhino, is characterized by its large size and is able to reach one ton or more in weight; herbivorous diet; and a thick protective skin, 1.5 –5 cm thick, formed from layers of collagen positioned in a lattice structure; relatively small brains for mammals this size (400–600g); and a large horn.