Vehicles move past a man wearing a protective mask against COVID-19 as he waits for the bus in Karachi, Pakistan on December 11, 2020. (Photo by Akhtar Soomro/Reuters)

Children watch and react as a T-Rex moves and growls in an inter-active display at Field Station Dinosaurs in Secaucus, N.J on May 25, 2012. There will be 31 types of life-sized dinosaurs displayed at the Jurassic expedition that opens Saturday, May 26. (Photo by Mel Evans/Associated Press)

In this November 27, 2019 photo, Wadlande Pierre, right, talks on her mobile phone as she helps her mother, Vanlancia Julien, center, at their fruit and vegetable stand on a sidewalk in Delmas, a district of in Port-au-Prince, Haiti. Pierre, 23, said she temporarily moved in with her aunt in the southwest town of Les Cayes to escape the violent protests in Port-au-Prince. However, she had to move back to the capital because there was no gas, power or water in Les Cayes, and food was becoming scarce. (Photo by Dieu Nalio Chery/AP Photo)

The Sea Life Trust team move Beluga Whale Little Gray from a tugboat during transfer to the bayside care pool where they will be acclimatised to the natural environment of their new home at the open water sanctuary in Klettsvik Bay in Iceland on August 7, 2020. The two Beluga whales, named Little Grey and Little White, are being moved to the world's first open-water whale sanctuary after travelling from an aquarium in China 6,000 miles away in June 2019. (Photo by Aaron Chown/PA Images via Getty Images)

This aerial picture taken on June 6, 2016, shows the scene of a collision between a freight train and a passengers train on their way between Liege and Namur, in Saint-Georges-sur-Meuse, Eastern Belgium. Investigators worked through the wreckage of a high speed train crash in eastern Belgium on Monday that killed at least three people and injured nine others. A fast-moving passenger train late Sunday slammed violently into the back of a slow-moving freight train that was travelling on the same track for reasons that remain unexplained. (Photo by Laurie Dieffembacq/AFP Photo)

A Fulani Pastoralist carries two baby sheep on her donkey cart as her family move on northwards in Barkedji, Senegal on July 21, 2020. Thousands of Pastoralist families will start the movement north in the next weeks. With the first rains comes fresh grass and water for the Fulani herders' livestock, it also marks the point where most of the Pastoralist will move northwards until the dry season. (Photo by John Wessels/AFP Photo)

A seafood vendor moves a giant swordfish to his stall at a market in Qingdao, Shandong province, China, September 12, 2015. The 4.1-metre-long (13.5 feet) swordfish, weighed about 309.5 kilograms (682 lbs), was caught by local fishermen on Friday, local media reported. (Photo by Reuters/Stringer)

A cosplayer uses moving stairs during the first public day of the world's largest computer games fair Gamescom in Cologne, Germany August 23, 2017. (Photo by Wolfgang Rattay/Reuters)