Macaques huddle together for warmth at a hot spring in Nagano, Japan in the last decade of December 2023. Known as snow monkeys, the animals soak in the 40°C water every day during cold weather, spending their bathtime grooming, snoozing and playing on visitors’ camera tripods. (Photo by David Lazar/Animal News Agency)

Visitors watch ice-cold artworks, depicting Marilyn Monroe, at an ice and snow sculpture exhibition made by 35 international artists, who worked 4 months at minus eight degrees Celsius in Oberhausen, Germany, on the 1st of Advent, Sunday, December 1, 2024. (Photo by Martin Meissner/AP Photo)

A skater observes pancakes snow on the frozen Lake des Rousses in Les Rousses, central-eastern France, on January 1, 2025. This phenomenon forms when slushy ice in water clumps into round, pancake-like shapes due to waves or currents. (Photo by Fabrice Coffrini/AFP Photo)

A woman yawns as she sits outside a hospital on a cold winter morning in Srinagar January 3, 2019. (Photo by Danish Ismail/Reuters)

The Royal Castle is seen a veil of heavy winter smog in Budapest, Hungary on January 30, 2017. (Photo by Laszlo Balogh/Reuters)

A donkey savors warming temperatures after a long winter at the zoo in Warsaw, Poland, on Wednesday, April 8, 2015. (Photo by Czarek Sokolowski/AP Photo)

Ariel Winter is seen on February 21, 2017 in Los Angeles, CA. (Photo by Hollywood To You/Star Max/GC Images)

A statue of a man sleepwalking in his underpants is surrounded by snow on the campus of Wellesley College, in Wellesley, Mass., Wednesday, February 5, 2014. The sculpture entitled “Sleepwalker” is part of an exhibit by sculptor Tony Matelli at the college's Davis Museum. (Photo by Steven Senne/AP Photo)