People wearing fancy costumes walk near a skating rink past signs requesting to use protective face masks and to keep a social distance amid the coronavirus disease (COVID 19) outbreak, as heavy fog covers a square named after Soviet state founder Vladimir Lenin in Stavropol, Russia on December 1, 2020. (Photo by Eduard Korniyenko/Reuters)

Andreyka, a 10-month-old female bear cub, plays with Rommi, an Alaskan malamute, at the Siberian Zoo in the settlement of Listvyanka, Irkutsk Region, Russia on December 9, 2020. The bear cub, which was found in a weak condition earlier this year, now play-fights with the Alaskan malamute, who adopted her and has seen three generations of bear cubs brought up in the Siberian zoo and released back into the wild. (Photo by Yuri Novikov/Reuters)

18-year-old Palestinian Mohammed Uleywa, who was shot in the foot about 2 years ago by Israeli soldiers and lost one of his feet in the hospital where he was taken, is seen in Gaza City, Gaza on December 13, 2020. Palestinian youth Mohammed Uleywa, who became disabled after lost one foot during the “Great March of Return” demonstrations on the border of the blockaded Gaza Strip, showed his skills in parkour on concrete blocks despite his disability. (Photo by Mustafa Hassona/Anadolu Agency via Getty Images)

In this December 8, 2020 file photo, Venezuela's President Nicolas Maduro playfully sprays a journalist with disinfectant as he exits a press conference at Miraflores Presidential Palace in Caracas, Venezuela, amid the new coronavirus pandemic. Attorneys for the cash-strapped government blame the impact of U.S. sanctions for its inability to make an initial $18 million down payment to the United Nations for doses of the U.N.-supplied vaccines, whose deadline has already passed. (Photo by Matias Delacroix/AP Photo/File)

A Guarani boy pets a puppy in the Mata Verde Bonita village, in Marica, Rio de Janeiro state, Brazil, Thursday, February 25, 2020, where healthcare workers are making the rounds with coolers containing doses of China's Sinovac COVID-19 vaccine as part of a mass immunization program aimed at inoculating all of Rio's 16 million residents by the end of the year. (Photo by Bruna Prado/AP Photo)

In this image released by World Press Photo, Thursday April 15, 2021, by Ami Vitale for CNN, titled Rescue of Giraffes from Flooding Island, which won the first prize in the Nature Singles category, shows A Rothschild's giraffe (Giraffa camelopardalis rothschildi) is transported to safety in a custom-built barge from a flooded Longicharo Island, Lake Baringo, in western Kenya, on Dec. 3, 2020. (Photo by Ami Vitale for CNN, World Press Photo via AP Photo)

Homeless people queue to get free hot food organized by social services during frost winter day in-Kiev on December 18, 2012. Nineteen people died of exposure in Ukraine in the last 24 hours amid temperatures of minus 20 degrees Celsius (minus 4 degrees Fahrenheit), bringing the toll this month to 37, the health ministry said Tuesday. (Photo by Sergei Supinsky/AFP Photo)

In this April 12, 2015 photo, Sayed Ahmed Abdoh poles his boat to check his fish traps in the Nile River, near Abu al-Nasr village, about 770 kilometers (480 miles) south of Cairo, Egypt. Abdoh caught some 20 fish this day and gave them to his friend, Salama Osman, a migrant worker in a Cairo apartment building, to celebrate his biannual return to their village. (Photo by Hiro Komae/AP Photo)