Photo shows 24 swallows huddling together to survive harsh winter weather by the side of Yukon River in Canada. /CFP
Photo shows Japanese Yaku macaques gather around a bonfire at Japan Monkey Centre in Inuyama, Aichi Prefecture. /CFP
Photo shows two ducks burrowing to stay warm in Detroit, Michigan, the United States. /CFP
Photo shows hamsters sleeping together in a nest to keep warm in a pet shop in Jiaxing，east China's Zhejiang Province. /CFP
Winter arrives, but in this cold season, we can always witness a heartwarming and adorable scene – animals huddling together to keep warmth. These little creatures, in their simple and pure way, convey to us the power of unity.