A donkey is seen before the start of the procession of the “Virgem da Atalaia” during Holy Week at Alcochete, near Lisbon April 5, 2015. Women ride donkeys during the “Virgem da Atalaia” procession, that has been held annually for about 400 years. In the past, only single women rode the donkeys to ask for help from the Virgin to find a husband. (Photo by Rafael Marchante/Reuters)

Dancers prepare before a performance in the backstage area of the Buick exhibition during the “Auto China 2014” Beijing International Automotive Exhibition in Beijing on April 21, 2014. Leading automakers have gathered in Beijing for the kickoff of China's biggest car show, but lackluster growth and environmental restrictions in the world's largest car market have thrown uncertainty into the mix. (Photo by AFP Photo)

Malabon Zoo owner Manny Tangco holds a full-grown but very small rooster named “Small But Terrible” from Malaysia to compare it with the giant red rooster from France named “Mr. Universe” as they are shown to the media as part of the “Roosters of the World” exhibition to celebrate the “Red Fire Rooster” in the Chinese lunar calendar Friday, January 27, 2017 in suburban Malabon city north of Manila, Philippines. The Roosters of the World exhibition features roosters from countries as the United States, Japan, United Kingdom, France, China, Malaysia, Indonesia and Poland. (Photo by Bullit Marquez/AP Photo)

A machine works on a Rio 2016 Olympic medal at the Casa da Moeda do Brasil (Brazilian Mint) in Rio de Janeiro, Brazil, June 28, 2016. The Casa da Moeda do Brasil is the Brazilian mint, owned by the Brazilian government and administratively subordinated to the Ministry of Finances. It was established in 1694. (Photo by Sergio Moraes/Reuters)

The Rio de Janeiro Olympics kick off on August 5 for some two weeks of competitive games drawing athletes as well as audiences from around the world. As they prepare to cover the event, Reuters photographers look back on their favourite pictures from past Olympics where they captured the action on the ground as well as the participants' tears and joy that followed. (Photo by Lucy Nicholson/Reuters)

Volunteers carry an idol of the Hindu elephant god Ganesh, the deity of prosperity, in a pond for its immersion during the ten-day-long Ganesh Chaturthi festival in Mumbai, India, September 18, 2015. During the festival, the idols will be taken through the streets in a procession accompanied by dancing and singing, and will be immersed in a river or the sea in accordance with the Hindu faith. (Photo by Shailesh Andrade/Reuters)

Bottlenose dolphins swim over visitors in water tank at the Hakkeijima Sea Paradise aquarium-amusement park complex in Yokohama, southwest of Tokyo, Tuesday, July 21, 2015. Temperatures in Tokyo's metropolitan area neared around 96 degree Fahrenheit, or 35 degree Celsius, on Tuesday. (Photo by Shuji Kajiyama/AP Photo)

Cosplayer Monzerath Gutierrez, who portrays Dragon Ball Z character Trunks, female version, poses for a portrait during the 4th edition of the MiniCon Anime convention, at the School of Dance, in Managua, Nicaragua, Sunday, July, 26, 2015. (Photo by Esteban Felix/AP Photo)