This photograph taken during a government organised media tour shows College of Science graduates from Tibet University celebrating their graduation at the Potala Palace Square in the regional capital Lhasa, in China's Tibet Autonomous Region, on June 1, 2021. (Photo by Hector Retamal/AFP Photo)

A man wearing a mouth-nose protection to protect against the coronavirus walks past a department store window with the words “BACK TO LIFE” in Schwerin, Germany, Thursday, April 15, 2021. (Photo by Jens Buettner/dpa via AP Photo)

A contestant holds three Pomeranians during the FCI-CACIB Zakarpattia 2021 International Dog Show at the Avanhard Stadium, Uzhhorod, Zakarpattia Region, western Ukraine on September 19, 2021. (Photo by Ukrinform/Rex Features/Shutterstock)

A lake in a shape of a heart is seen surrounded by autumn-coloured trees outside Balashikha, Moscow region, Russia on October 4, 2021. (Photo by Maxim Shemetov/Reuters)

An elephant enjoys its back being scrubbed by the keeper on March 1, 1950. (Photo by Fox Photos/Getty Images)

This picture taken on May 31, 2018 shows a villager walking between abandoned houses covered with overgrown vegetation in Houtouwan on Shengshan island, China' s eastern Zhejiang province. Houtouwan was a thriving fishing community of sturdy brick homes that climb up the steeply hilled island of Shenghshan, but is now abandoned, with entire houses completely overgrown as if vacuum- sealed in a lush layer of green. (Photo by Johannes Eisele/AFP Photo)

Dead leaf or almost by Guilhem Duvot. Taken in Nován Stráž, Slovakia. Describe what is pictured? A dead leaf grasshopper. How does this image fit with the theme of the competition? The perfect camouflage – nature is amazing. I saw the grasshopper only because it jumped. (Photo by Guilhem Duvot/Royal Society of Biology)

Graduates dance as they take part in a “Last school bell” ceremony at a school in Minsk, Belarus on May 30, 2018. (Photo by Vasily Fedosenko/Reuters)