Village Gurung (boys dormitory) decorated with carved wooden pillars and animal skulls, where tribal boys are trained to manhood, Ngangting, Nagaland, India, Asia

Village Gurung (boys dormitory) decorated with carved wooden pillars and animal skulls, where tribal boys are trained to manhood, Ngangting, Nagaland, India, Asia

Back of a Tibetan man with needles inserted into skin in manhood rites in Qinghai Province, China, Asia

A Maori man with spear at a tribal gathering in New Zealand

Close up of smiling groom wearing tuxedo

Groom in tuxedo adjusting bow tie

Close up of groom holding wedding rings

Businessman looking out office window

cow jumping by the Hamer tribe

Hamer tribe in Ethiopia

Hamer woman carrying a baby at a bull jumping ceremony, which initiates a boy into manhood, in the village of Asile, Omo Valley, Southern Nations Nationalities and Peoples' Region, Ethiopia

Hamer man wearing a colourful hat at a bull jumping ceremony, which initiates a boy into manhood, in the village of Asile, Omo Valley, Ethiopia