Dolphins refer to whales in the family Delphinidae. The body is 1.2 to 1.7 meters long, with a gray-black body surface, a short snout, a round and slightly convex forehead, a flat tail, and no dorsal fin. Like other cetaceans, they have small eyes, poor vision, and rely on echolocation to identify objects. The finless porpoise is a national second-level protected aquatic animal. It likes to live in shallow coastal waters and waters where salt water meets fresh water. It is mainly distributed in the Bohai and Yellow Sea areas in the north. ?

What is the number of finless porpoises in the Yangtze River?

Today, the number of finless porpoises in the Yangtze River has dropped significantly, and conservation efforts are facing more and more challenges. Especially in recent years, with the acceleration of industrialization and urbanization and the dredging of waterways, the Yangtze finless porpoise, a rare aquatic creature, has been increasingly affected by habitat conditions and genetic diversity, and has entered an endangered state. The second is the impact on economic and social development. With the development of economy and society and the acceleration of urbanization, some places have artificially discharged large amounts of pollutants into the Yangtze River for the sake of economic development. As a result, the number of finless porpoises has been declining.

Why should we protect finless porpoises?

Dolphins are an important part of the Yangtze River ecosystem and the most distinctive creatures. It is also a "friend" of mankind. Therefore, comprehensive protection of finless porpoises is fundamental to ensuring the health and stability of the Yangtze River ecosystem. Finless porpoises have very high requirements for water quality, and the current living conditions of finless porpoises are not optimistic. Therefore, researchers need to strengthen research on dolphins so that researchers can better understand the dynamics of dolphin populations, thereby increasing the public's awareness and ability to protect dolphins.

How to protect finless porpoises?

Volunteer help is first needed. Volunteers should actively participate in protecting the ecology of the Yangtze River, carry out environmental monitoring, and protect finless porpoises. Followed by non-governmental environmental protection organizations and non-governmental volunteers. Non-governmental environmental protection organizations initiated by the government and participated by private volunteers are committed to promoting the development of environmental protection; they are open to the public and accept public supervision. At the same time, we will strengthen environmental protection publicity and education to increase public awareness of participating in the ecological protection of the Yangtze River; carry out scientific and technological projects to provide technical support for the ecological protection of the Yangtze River.