These stunning pictures show a normally vicious tiger calmly swimming in a pool of algae, on Jule 9, 2014. The powerful cat takes a refreshing break by taking a dip in the bright green algae. But it looks like this big cat is scared of getting his head wet as he strains to keep it above the water. After splashing around for a bit the tiger gets out and tries to air-dry with specks of the vegetation dripping off his fur. The striking pictures were taken at Copenhagen zoo by snapper Soren Lundgren Neilson. (Photo by Soren Nielsen/Caters News)

A wild leopard runs on the stairs as it tries to escape from a compound of a house in Kathmandu, Nepal June 1, 2016. (Photo by Navesh Chitrakar/Reuters)

A baby Chimpanzee plays in its enclosure at Taronga Zoo July 14, 2006 in Sydney, Australia. (Photo by Ian Waldie/Getty Images)

Saint Nicholas poses with students during a traditional parade in central Brussels, Belgium December 3, 2016. (Photo by Yves Herman/Reuters)

An undercover police officer, who had been marching with anti-police demonstrators, aims his gun at protesters after some in the crowd attacked him and his partner in Oakland, California December 10, 2014. Police said more than 100 demonstrators marched in Berkeley, California, which has a history of social activism. Under cloudy skies, turnout was smaller than earlier in the week, when demonstrators in the area threw rocks at police and shut down a major freeway. (Photo by Noah Berger/Reuters)

A woman kneels down to pray at a “Pray and swipe right” event organised by online dating app Tinder, with social-distancing stickers featuring its flame logo on the praying ground, a photo booth where people can take profile pictures for their new accounts, and free offering sets, at the Trimuriti shrine on Valentine's Day in Bangkok, Thailand February 14, 2022. (Photo by Soe Zeya Tun/Reuters)

A “mouse house” fire station and book store, designed by an anonymous group of Swedish artists known as ”AnonyMouse”, is installed next to a retail store in Newton, Massachusetts, USA, 23 June 2022. Known for mouse-themed miniatures in Sweden, France and the Isle of Man, the collective has started installing several of the miniatures in Boston and the surrounding areas. (Photo by C.J. Gunther/EPA/EFE)

A youth rides his bicycle at Times Square, in New York City, U.S., August 14, 2019. (Photo by Lucas Landau/Reuters)