Tourists view Hukou Waterfall on the Yellow River in the frigid winter on December 28, 2023 in Yan'an, Shaanxi Province of China. Freezing winter air has turned Hukou Waterfall into an icy wonderland. (Photo by VCG/VCG via Getty Images)
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)