Inspired by the Japanese bathhouse culture, the capybara from South America is less adapted to cold and dry weather.
Therefore, when winter comes in Japan, capybaras need to soak in hot springs to moisturize and soothe their skin.
The Japanese threw grapefruit or tangerines, which could dispel the cold, into hot springs, which gave rise to the cute image of capybaras that enjoy bathing in hot springs with grapefruit or tangerines on their heads.
