| 2. | In total , the world ' s oceans , lakes , and rivers harbor more than 1 , 200 species of venomous fish , write researchers from the american museum of natural history in a recent issue of the journal of heredity 总体上,海洋,湖泊,河流生活着超过1200种的有毒鱼类,美国自然历史博物馆在最近一期的遗传期刊上写到 |