A Humboldt penguin stands on weighing scales whilst being photographed by members of the press during a photocall at the annual weigh-in at London Zoo in London, Britain, 24 August 2016. Every animal that is in the zoo is weighed and measured and the statistics recorded so the data can be shared with zoos across the world. (Photo by Hannah McKay/EPA)

People pose for souvenir photos along peach blossom flowers at a field in Hanoi February 6, 2015. The peach blossom, believed to bring luck to families, is used to decorate homes during the Vietnamese “Tet” (Lunar New Year festival), which will take place from February 14 to February 24. (Photo by Reuters/Kham)

Tsukimi Ayano steps out of her house in the village of Nagoro on Shikoku Island in southern Japan February 24, 2015. Tsukimi Ayano made her first scarecrow 13 years ago to frighten off birds pecking at seeds in her garden. The life-sized straw doll resembled her father, so she made more. Today, the tiny village of Nagoro in southern Japan is teeming with Ayano's hand-sewn creations, frozen in time for a tableau that captures the motions of everyday life. (Photo by Thomas Peter/Reuters)

In this January 24, 2017 photo, boxer Idamerys Moreno wraps a bandage on her hand before a training session at a sports center in Havana, Cuba. Boxing has long been an athletic engine for Cuba, which has won 72 Olympic medals in that category but women are not allowed to box. (Photo by Ramon Espinosa/AP Photo)

Workers attempt to bring a tranquillised black rhino to the ground before dehorning in an effort to deter the poaching of one of the world's endangered species, at a farm outside Klerksdorp, in the north west province, South Africa, February 24, 2016. (Photo by Siphiwe Sibeko/Reuters)

An Iraqi Shi'ite boy poses for a photograph as Iraq Shi'ite Muslims commemorate Ashura in Baghdad, October 24, 2015. Ashura, which falls on the 10th day of the Islamic month of Muharram, commemorates the death of Imam Hussein, grandson of Prophet Mohammad, who was killed in the seventh century battle of Kerbala. (Photo by Ahmed Saad/Reuters)

Holocaust survivors are seen backstage during a beauty contest for survivors of the Nazi genocide in the northern Israeli city of Haifa, November 24, 2015. Thirteen women took part in the third annual beauty contest for Holocaust survivors in Israel on Tuesday. (Photo by Amir Cohen/Reuters)