Arli National Park often Arly is a national park

National park

A national park is a reserve of natural, semi-natural, or developed land that a sovereign state declares or owns. Although individual nations designate their own national parks differently A national park is a reserve of natural, semi-natural, or developed land that a sovereign state declares or...

 located in southeastern Burkina Faso

Burkina Faso

Burkina Faso – also known by its short-form name Burkina – is a landlocked country in west Africa. It is surrounded by six countries: Mali to the north, Niger to the east, Benin to the southeast, Togo and Ghana to the south, and Côte d'Ivoire to the southwest.Its size is with an estimated...

. It adjoins Benin

Benin

Benin , officially the Republic of Benin, is a country in West Africa. It borders Togo to the west, Nigeria to the east and Burkina Faso and Niger to the north. Its small southern coastline on the Bight of Benin is where a majority of the population is located...

's Pendjari National Park

Pendjari National Park

The Pendjari National Park lies in north western Benin, adjoining the Arli National Park in Burkina Faso. Named for the Pendjari River, the national park is known for its wildlife and his home to some of the last populations of big game like elephants, West African lions, hippopotamuses, buffalo...

 in the South and the Singou Reserve

Singou Reserve

Singou Reserve is a complete reserve in Burkina Faso.Established in 1955 it is located in Gourma Province and covers an area of .-References:...

 in the West.

The Arli National Park is set in 760 square kilometres with a wide variety of habitats, ranging from the gallery forests of the Arli and Pendjari rivers to savanna woodland and sandstone hills of the Gobnangou chain. It is home to around 200 elephants, 200 hippo

Hippopotamus

The hippopotamus , or hippo, from the ancient Greek for "river horse" , is a large, mostly herbivorous mammal in sub-Saharan Africa, and one of only two extant species in the family Hippopotamidae After the elephant and rhinoceros, the hippopotamus is the third largest land mammal and the heaviest...

s and 100 lion

Lion

The lion is one of the four big cats in the genus Panthera, and a member of the family Felidae. With some males exceeding 250 kg in weight, it is the second-largest living cat after the tiger...

. There are also buffalo

African Buffalo

The African buffalo, affalo, nyati, Mbogo or Cape buffalo is a large African bovine. It is not closely related to the slightly larger wild Asian water buffalo, but its ancestry remains unclear...

, baboon

Baboon

Baboons are African and Arabian Old World monkeys belonging to the genus Papio, part of the subfamily Cercopithecinae. There are five species, which are some of the largest non-hominoid members of the primate order; only the mandrill and the drill are larger...

s, red and green monkey

Monkey

A monkey is a primate, either an Old World monkey or a New World monkey. There are about 260 known living species of monkey. Many are arboreal, although there are species that live primarily on the ground, such as baboons. Monkeys are generally considered to be intelligent. Unlike apes, monkeys...

s, warthog

Warthog

The Warthog or Common Warthog is a wild member of the pig family that lives in grassland, savanna, and woodland in Sub-Saharan Africa. In the past it was commonly treated as a subspecies of P...

, boar

Boar

Wild boar, also wild pig, is a species of the pig genus Sus, part of the biological family Suidae. The species includes many subspecies. It is the wild ancestor of the domestic pig, an animal with which it freely hybridises...

 and various antelope

Antelope

Antelope is a term referring to many even-toed ungulate species indigenous to various regions in Africa and Eurasia. Antelopes comprise a miscellaneous group within the family Bovidae, encompassing those old-world species that are neither cattle, sheep, buffalo, bison, nor goats...

 such as western hartebeest

Hartebeest

The hartebeest is a grassland antelope found in West Africa, East Africa and Southern Africa. It is one of the three species classified in the genus Alcelaphus....

 and roan antelope

Roan Antelope

The Roan Antelope is a savanna antelope found in West, Central, East Africa and Southern Africa.Roan Antelope stand about a metre and half at the shoulder and weigh around 250 kilograms. Named for the "roan' colour , they have a lighter underbelly, white eyebrows and cheeks and a black face,...

. There are also bushbuck

Bushbuck

The bushbuck is the most widespread antelope in Sub-Saharan Africa, and is found in rain forests, montane forests, forest-savanna mosaics and bush savannaforest and woodland. Recently, genetic studies have shown that the bushbuck, is in fact a complex of two geographically and phenotypically...

s, duiker

Duiker

A duiker is any of about 21 small to medium-sized antelope species from the subfamily Cephalophinae native to Sub-Saharan Africa.Duikers are shy and elusive creatures with a fondness for dense cover; most are forest dwellers and even the species living in more open areas are quick to disappear...

s and waterbuck

Waterbuck

The Waterbuck is a large antelope found widely in Sub-Saharan Africa.Waterbuck stand at the shoulder. Males weigh and females . Their coats are reddish brown in colour and become progressively darker with age; they have a white 'bib' under their throats and white on their rumps...

.

The park can be accessed via the N19 highway via Diapaga

Diapaga

Diapaga is a city located in the province of Tapoa in Burkina Faso. It is the capital of Tapoa Province. The main ethnic group are the Gourmantché....

 (in the dry season also via Pama). Arli National Park has several pools, such as Tounga where there is a waterhole

Depression (geology)

A depression in geology is a landform sunken or depressed below the surrounding area. Depressions may be formed by various mechanisms.Structural or tectonic related:...

 and there are two pools which are often vacated by up to twenty hippo

Hippopotamus

The hippopotamus , or hippo, from the ancient Greek for "river horse" , is a large, mostly herbivorous mammal in sub-Saharan Africa, and one of only two extant species in the family Hippopotamidae After the elephant and rhinoceros, the hippopotamus is the third largest land mammal and the heaviest...

s.

The Park was earlier a habitat for the African Wild Dog

African Wild Dog

Lycaon pictus is a large canid found only in Africa, especially in savannas and lightly wooded areas. It is variously called the African wild dog, African hunting dog, Cape hunting dog, painted dog, painted wolf, painted hunting dog, spotted dog, or ornate wolf...

, Lycaon pictus, although this canid is likely extirpated at present in the local area, due to an expanding human population

Overpopulation

Overpopulation is a condition where an organism's numbers exceed the carrying capacity of its habitat. The term often refers to the relationship between the human population and its environment, the Earth...

and a lack of national protection.