A group of people are seen on a Victoria line train in London, England during the first night of the Night Tube service on August 19 2016. The Central line and Victoria line are the first to operate a Night service with further lines expected to be running by the end of the year. (Photo by SWNS.com)

A group of fashionable nonagenarians pose for a photo in Pengzhou, Sichuan, China on October 12, 2016. (Photo by Rex Features/Shutterstock)

A Polisario fighter sits on a rock at a forward base on the outskirts of Tifariti, Western Sahara, September 9, 2016. At a rocky outpost in Western Sahara, a new generation of soldiers who have never known war are mobilising as tensions resurface in one of Africa's oldest disputes after a quarter century of uneasy peace. (Photo by Zohra Bensemra/Reuters)

Shoppers walk past crocodiles for sale at a market in Bata on February 3, 2015. Markets in Equatorial Guinea sell a variety of animals including pangolins, monkeys and crocodiles as food. (Photo by Carl de Souza/AFP Photo)

A health worker applies a dose of the AstraZeneca vaccine during the first day of a three-day COVID-19 vaccination campaign for people over age 35 in the Complexo da Maré favela of Rio de Janeiro, Brazil, Brazil, Thursday, July 29, 2021. Some recipients will be monitored to study the rate of protection the vaccines provide and the extent to which virus variants are circulating. (Photo by Bruna Prado/AP Photo)

Filipa Martins of Portugal fails to grab the bar as she performs the uneven bars during the Women's All-Around Final at the 50th FIG Artis​tic Gymnastics World Championships in​ Kitakyushu, Japan, 21 October 2021. (Photo by Kimimasa Mayama/EPA/EFE)

Afghan tea seller Farooq Shah, center, fills kettles with tea for customers at a market place in Kabul, Afghanistan, Wednesday, December 4, 2019. (Photo by Altaf Qadri/AP Photo)

The group of elephants was tracked though nearby jungle by wildlife officers in Chachoengsao, Thailand on April, 2020. More than 50 wild elephants crossed the highway. (Photo by Pratya Chutipat Sakul/Viral Press)