A baby rhesus macaque (Macaca mulatta) looks up as it plays with a tiger cub at a zoo in Hefei, Anhui province, August 2, 2012. (Photo by Jianan Yu/Reuters)

European bisons (also known as Wisent) at the Bison farm in Muczne, southeastern Poland, 30 December 2018. The Bison farm is a continuation of bison breeding in Bieszczady, which was started in 1963. Here visitors can admire the bison of Bialowieza-Caucasian line, also called the mountain race. The European Bison is the national animal of Poland. (Photo by Darek Delmanowicz/EPA/EFE)

A diver wearing a Santa Claus costume swims with fishes in a large tank during an underwater performance for the upcoming Christmas celebration at Hakkeijima Sea Paradise in Yokohama, south of Tokyo, Japan on December 1, 2022. (Photo by Kim Kyung-Hoon/Reuters)

Pusha the cat, which adopted four bereaved baby squirrels and currently feeds and lives with them, lies at a local park of miniatures in Bakhchisaray, Crimea on April 25, 2019. (Photo by Alexey Pavlishak/Reuters)

A mischievous squirrel chases a turkey in a garden in Medford, Wisconsin in the second decade of January 2024. The garden’s owner, artist Cheryl Plautz, said the squirrels chase the birds “for fun”. (Photo by Cheryl Plautz/Solent News)

Wefa, 13, a female Western lowland gorilla, looks inside a Christmas box that contained food as a gift, after a caretaker dressed up as Santa Claus placed it in the enclosure of the family of gorillas, at Bioparc Fuengirola, in Fuengirola, Spain, on December 21, 2024. (Photo by Jon Nazca/Reuters)

Miniature pig “Nueffel” is walked in a park in Hanover, Germany, 14 April 2016. (Photo by Sebastian Gollnow/EPA)

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)