Youths kick a gay rights activist during a protest against a proposed new law termed by the State Duma, the lower house of Parliament, as “against advocating the rejection of traditional family values” in central Moscow June 11, 2013. (Photo by Maxim Shemetov/Reuters)

A chimpanzee feeding a leopard cub at Southam Park Zoo, Warwickshire. (Photo by Ian Tyas/Keystone Features/Getty Images). 1971

A competitor shows her tattoos at the MBK Tattoo Contest in a shopping mall in Bangkok October 23, 2014. (Photo by Athit Perawongmetha/Reuters)

A man photographs Anila Quayyum Agha's “Intersections” art work on the first day of ArtPrize at the Grand Rapids Art Museum in Grand Rapids, Mich. on Wednesday, September 24, 2014. (Photo by Emily Rose Bennett/AP Photo/The Grand Rapids Press)

People in costume take photos during a Halloween event on October 31, 2015 in Lan Kwai Fong, Central District, Hong Kong. Halloween, a named taken from 'All Hallows' Even' falls on the day before All Saints' Day on November 1, a holiday when Christians remember their deceased loved ones. (Photo by Jerome Favre/Getty Images)

Beautiful woman and man playing domination games in bed. (Photo by nd3000/Getty Images)

Woman taunts naked man. (Photo by riskms/Getty Images)

Female female male threesome. My bit on the side is my best male friend. (Photo by Laoshi/Getty Images)