It's an image of the Maasai tribe in Kenya, during their jumping competition. It is a sort of mating dance

This image is not Photoshoped. It's an image of the Maasai tribe in Kenya, during their jumping competition. It is a sort of mating dance, a way for a young Maasai man who has just become a warrior to demonstrate his strength and attract a bride

The Maasai inhabit the African Great Lakes region and arrived via South Sudan.
Most Nilotic speakers in the area, including the Maasai, the Turkana and the Kalenjin, are pastoralists and have a reputation as fearsome warriors and cattle rustlers.  The Maasai and other groups in East Africa have adopted customs and practices from neighbouring Cushitic-speaking groups, including the age-set system of social organisation, circumcision, and vocabulary terms

Many ethnic groups that had already formed settlements in the region were forcibly displaced[when?] by the incoming Maasai. Other, mainly Southern Cushitic groups, were assimilated into Maasai society. The Nilotic ancestors of the Kalenjin likewise absorbed some early Cushitic populations.

Settlement in East Africa

The Maasai territory reached its largest size in the mid-19th century and covered almost all of the Great Rift Valley and adjacent lands from Mount Marsabit in the north to Dodoma in the south.[15] At this time the Maasai, as well as the larger Nilotic group they were part of, raised cattle as far east as the Tanga coast in Tanganyika (now mainland Tanzania). Raiders used spears and shields but were most feared for throwing clubs (orinka) which could be accurately thrown from up to 70 paces (approx. 100 metres). In 1852, there was a report of a concentration of 800 Maasai warriors on the move in what is now Kenya. In 1857, after having depopulated the "Wakuafi wilderness" in what is now southeastern Kenya, Maasai warriors threatened Mombasa on the Kenyan coas

Because of this migration, the Maasai are the southernmost Nilotic speakers. The period of expansion was followed by the Maasai "Emutai" of 1883–1902. This period was marked by epidemics of contagious bovine pleuropneumonia, rinderpest (see 1890s African rinderpest epizootic), and smallpox. The estimate first put forward by a German lieutenant in what was then northwest Tanganyika, was that 90% of cattle and half of wild animals perished from rinderpest. German doctors in the same area claimed that "every second" African had a pock-marked face as the result of smallpox. This period coincided with drought. Rains failed in 1897 and 1898.
The Austrian explorer Oscar Baumann travelled in Maasai lands between 1891 and 1893 and described the old Maasai settlement in the Ngorongoro Crater in the 1894 book Durch Massailand zur Nilquelle ("Through the lands of the Maasai to the source of the Nile"). By one estimate two-thirds of the Maasai died during this period. Maasai in Tanganyika (now mainland Tanzania) were displaced from the fertile lands between Mount Meru and Mount Kilimanjaro, and most of the fertile highlands near Ngorongoro in the 1940s. More land was taken to create wildlife reserves and national parks: Amboseli National Park, Nairobi National Park, Maasai Mara, Samburu National Reserve, Lake Nakuru National Park and Tsavo in Kenya; and Lake Manyara, Ngorongoro Conservation Area, Tarangire and Serengeti National Park in what is now Tanzania.
Maasai are pastoralists and have resisted the urging of the Tanzanian and Kenyan governments to adopt a more sedentary lifestyle. They have demanded grazing rights to many of the national parks in both countries.

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The Maasai people stood against slavery and never condoned the traffic of human beings, and outsiders looking for people to enslave avoided the Maasai.

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Essentially there are twenty-two geographic sectors or sub-tribes of the Maasai community, each one having its customs, appearance, leadership and dialects. These subdivisions are known as 'nations' or 'iloshon' in the Maa language: the Keekonyokie, Ildamat, Purko, Wuasinkishu, Siria, Laitayiok, Loitai, Ilkisonko, Matapato, Dalalekutuk, Ilooldokilani, Ilkaputiei, Moitanik, Ilkirasha, Samburu, Ilchamus, Laikipiak, Loitokitoki, Larusa, Salei, Sirinket and Parakuyo.