A chimpanzee bottle-feeds a lamb at Southam Zoo Farm in Warwickshire. The owners of the zoo, Mr and Mrs Clews, bring up many of the animals as their pets; the animals, are, as a result, of a friendly disposition. (Photo by Fox Photos/Getty Images). 23rd August 1968

Women participate during the Mr. Olympia Amateur South America bodybuilding competition in Medellin, Colombia, February 19, 2017. (Photo by Fredy Builes/Reuters)

Afghan bodybuilders compete in the Mr. Afghanistan bodybuilding competition in Kabul on July 10, 2024. (Photo by Wakil Kohsar/AFP Photo)

J.S. Burgers Cafe chef Yasuhito Fukui prepares Mr. and Mrs. Burger featuring the U.S. presidential candidates Hillary Clinton and Donald Trump at the hamburger joint in Tokyo, Japan October 7, 2016. (Photo by Megumi Lim/Reuters)

“Keep On Trucking, Mr. Lynx!”. Canadian Lynx Study. (Photo by Josef)

Female Competitors pose onstage during the annual Mr. Korea competition on July 7, 2004 in Seoul South Korea. Mr. Korea, organized by the National Body Builder's Association, is one of the biggest bodybuilding competitions in Asia. (Photo by Chung Sung-Jun/Getty Images)

Winner of the Sandow bodybuilding competition, Mr. Murray. (Photo by Reinhold Thiele/Thiele/Getty Images). Circa 1905

Mr. Zhong Hua, of Johns Hopkins University School of Medicine, took this image of the peripheral nerves (those outside of the brain) in an 11.5-day-old mouse embryo, magnified five times. (Photo by Zhong Hua)