★ André Dahan is a master of children's picture books. He uses simple lines and techniques to appeal to readers of all ages, awakening the inner child within each person. Well-received worldwide, his works have been published in more than ten countries, including the United Kingdom, the United States, Germany, Japan, South Korea, and China.
河马芝宝喜欢跳水和游泳。可是，一天他突然发现水底有很多奇怪的东西：电视机、瓶子、罐子……他意识到河水已经遭到了污染。他的朋友小猴子查理也有相同的发现，他看见森林里到处是垃圾。出于担心，两位好朋友立刻采取行动，他们找来了更多动物朋友一起来帮忙，把干净和整洁还给大自然。
