Japanese monkeys surround a hot bath as they eat yuzu (Japanese citron) at Ueno Zoo in Tokyo Saturday.

• 猴子周六在日本东京上野动物园的温泉旁吃柚子（日本香橼）。管理员们冬至时在温泉里放满黄色的柚子，希望能帮猴子驱寒去病。