编辑同志: 白暨豚是生长在淡水中的一种哺乳动物。它用肺呼吸,生有发达的大脑,声纳系统和富有弹性的皮肤,对研究鲸类的进化、仿生应用等具有很高的科研价值。但是,白暨豚资源十分稀少。近几年来经多次调查,除在武汉到宜昌的长江江段一次见到19头外;长江支流,洞庭湖和钱塘江等均很少发现。资源稀少的 Editor’s Comrade: The dolphin is a mammal growing in freshwater. It breathes from the lungs and has developed brain, sonar system and elastic skin, which is very valuable for studying the evolution of cetaceans, bionic applications and so on. However, dolphin resources are scarce. After several surveys in recent years, except in the Yangtze River section from Wuhan to Yichang, 19 ships have been seen once; the tributaries of the Yangtze River, Dongting Lake and Qiantang River are rarely found. Scarce resources