Fish, rounded head, small mouth, black-brown back, white abdomen, fins often yellow. Flesh flavor fresh state wish to talk about the United States, ovaries, blood and liver are highly toxic. Lives in the sea, some also into the river. Also called triggerfish (tún).

Please click on the image to enter the description of the river dolphin "is not a single thing

Broadly speaking, the freshwater dolphin refers to all the cetaceans that reside in freshwater, for example, the "2006 Yangtze River Freshwater Dolphin Expedition" initiated by scholars of many countries in the Yangtze River of China in 2006, which is a study of the baiji and the porpoise, two branches of the Yangtze River. For example, the "2006 Yangtze River Freshwater Dolphin Expedition" initiated by scholars from many countries in 2006 was for the baiji dolphin and the Yangtze River dolphin Zuoxiao, which are not quite related to each other; the freshwater dolphin in a narrower sense refers to the cetaceans with a long rostrum, a rounded forehead, and small eyes summarized by morphologic taxonomies.

The baiji dolphin belongs to this category, while the porpoise does not, and the river dolphin, which lives mainly in the sea, is also categorized in this category because of its typical freshwater dolphin appearance.

Some scholars have combined all freshwater dolphins in a narrow sense into the Ganges River Dolphin Family or the Ganges River Dolphin Family, which is called the Freshwater Dolphin Family or the Freshwater Dolphin Family. In reality, the proximity of these freshwater dolphins in terms of appearance and habits is a result of evolutionary convergence due to similar habitats, and does not mean that they are close in kinship.