水下营养(Nutrients under water)

在今天的形象中，欧洲河水獭不仅仅是一张可爱的脸。这种存在于欧洲、亚洲和北非的半水栖哺乳动物生活在清洁的河流、湖泊和湿地中，这使其成为环境健康的关键指标。它的空气动力学身体、蹼足和稠密的皮毛使它即使在冷水中也能保持温暖。
原文：
The European river otter, in today’s picture, is more than an adorable face. This semi-aquatic mammal, present in Europe, Asia and North Africa, lives in clean rivers, lakes and wetlands, making it a key indicator of environmental health. Its aerodynamic body, palmed legs and dense fur allow you to stay warm even in cold waters.
《© Ernst Dirksen/Minden Pictures》