Senegalese wrestlers cover themselves in sand as they prepare to start their training program in Petit Mbao on March 29, 2021. As Covid-19 restrictions have been lifted, wrestlers now start prepare themselves for the start of wrestling tournaments. Senegalese wrestling, which has its roots in the ceremonies celebrating the end of harvests in Serer and Diola ethnic groups and remains surrounded by a thick cloud of mystical practice, is still extremely popular in this West African country. (Photo by John Wessels/AFP Photo)

A grey seal basks under a rainbow on a beach on the Lincolnshire coast, England on November 21, 2017. (Photo by Sean Weekly/Caters News Agency)

A woman looks at artwork called “Alphabetti Spaghetti” by British sculptor Alex Chinneck, one of a series of “knotted” postboxes, installed as part of a public art trail for Kensington & Chelsea Art Week on October 3, 2020. (Photo by Victoria Jones/PA Images via Getty Images)

An ostrich is seen at Woburn Safari park before its opening as coronavirus disease (COVID-19) restrictions begin to ease, in Woburn, Britain on April 11, 2021. (Photo by Andrew Boyers/Reuters)

An internally displaced Afghan girl plays outside her shelter, amid the spread of the coronavirus disease (COVID-19), in Kabul, Afghanistan on May 7, 2020. (Photo by Mohammad Ismail/Reuters)

Medical workers wearing protective gear to protect against coronavirus infection, carry a patient at infectious diseases hospital where patients with coronavirus are treated in St.Petersburg, Russia, Wednesday, June 3, 2020. (Photo by Dmitri Lovetsky/AP Photo)

A mannequin wearing a face mask stands at the entrance of a women's clothing store in La Paz, Bolivia, Monday, June 1, 2020. After more than two months of quarantine to curb the spread of the new coronavirus the government authorized the restart of public transport and several industrial and commercial activities. (Photo by Juan Karita/AP Photo)

A woman wearing a face mask to help protect against the spread of the new coronavirus crosses a stream in Seoul, South Korea, Wednesday, July 15, 2020. (Photo by Lee Jin-man/AP Photo)