The weather in Shashi, Hubei Province

White-fin dolphin is commonly known as white fin, white clip and hippo. It belongs to mammals, cetaceans and baiji. Its distribution is limited to the middle and lower reaches of the Yangtze River, especially in the Yangtze River section of Hunan, Hubei, Anhui and Jiangsu below Shashi, Hubei.

Baiji dolphin is a rare aquatic mammal endemic to China. It is a valuable material for studying cetacean evolution and biological evolution. It has a developed brain and is an intelligent animal. It has special functions such as "echolocation" and sonar. Streamlined figure, rich subcutaneous fat and fast swimming, these structures have important scientific value in bionics.

Baiji dolphin is spindle-shaped. The snout is extremely long and narrow, and the maxilla and mandible are almost the same length and slightly upturned. The body length is six times that of a kiss. Body color: the back is bluish gray and the abdomen is white. There are semicircular white wide lines on both sides of the neck, behind the ear hole and above the flippers, and there are two half-moon white wide lines on the tail side above the anus.

Baiji dolphins like to move in the mainstream areas of rivers far from the shore, and belong to hydrophobic dolphins. There is a habit of clustering in action, often moving in the middle of the river in groups of three or five, and occasionally entering the confluence of lakes, tributaries and the main stream of the Yangtze River. Baiji dolphin breathes with its lungs and comes out of the water for air every minute or two. When breathing, the head always comes out of the water first, sometimes spraying water, and making a sound when breathing out of the water. The weather is sultry, and when the rainstorm comes, it will come out of the water frequently and fall together. The masses call it "Baiji Dolphin Worship River".

Baiji dolphin is a carnivore with poor eyesight. It finds food through its own ultrasonic signal and then suddenly swallows it. Their feeding habits are mainly fish, and they often feed in shallows, bifurcated streams and tributaries. Its food intake is very large, and the general food intake can account for 10% ~ 12% of the body weight.

The female is 6 years old and the male is 4 years old. The reproductive mating period is from April to June, the pregnancy is about 9 months, and the baby is delivered in the river in February of the following year. Female dolphins only give birth to 1 baby every year, each baby 1 baby, and occasionally give birth to twins. Newborn dolphins grow up by feeding their mothers' milk and act with the group.

Great changes have taken place in the ecological environment of the Yangtze River after the completion of Gezhouba and Three Gorges Dam. The development of shipping industry, river regulation, the increase of motorboats, water pollution, siltation of rivers and lakes, the use of harmful fishing gear and harmful fishing methods, etc. , a serious threat to the ethnic continuation of the baiji dolphin. According to the measured statistics, the resources of Yangtze baiji dolphin are insufficient 100, far less than the national treasure giant panda. In order to prevent the extinction of the baiji in nature, the state has listed it as a first-class protected animal, and designated the Swan Island Ancient Road in the Yangtze River and Tongling section in Anhui Province as nature reserves to protect and multiply baiji resources and save endangered species.

Respondent: Xu Te Xuan Yue-Tong Sheng Level 1 3-25 22:24

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White-fin dolphin is commonly known as white fin, white clip and hippo. It belongs to mammals, cetaceans and baiji. Its distribution is limited to the middle and lower reaches of the Yangtze River, especially in the Yangtze River section of Hunan, Hubei, Anhui and Jiangsu below Shashi, Hubei.

Baiji dolphin is a rare aquatic mammal endemic to China. It is a valuable material for studying cetacean evolution and biological evolution. It has a developed brain and is an intelligent animal. It has special functions such as "echolocation" and sonar. Streamlined figure, rich subcutaneous fat and fast swimming, these structures have important scientific value in bionics.

Baiji dolphin is spindle-shaped. The snout is extremely long and narrow, and the maxilla and mandible are almost the same length and slightly upturned. The body length is six times that of a kiss. Body color: the back is bluish gray and the abdomen is white. There are semicircular white wide lines on both sides of the neck, behind the ear hole and above the flippers, and there are two half-moon white wide lines on the tail side above the anus.

Baiji dolphins like to move in the mainstream areas of rivers far from the shore, and belong to hydrophobic dolphins. There is a habit of clustering in action, often moving in the middle of the river in groups of three or five, and occasionally entering the confluence of lakes, tributaries and the main stream of the Yangtze River. Baiji dolphin breathes with its lungs and comes out of the water for air every minute or two. When breathing, the head always comes out of the water first, sometimes spraying water, and making a sound when breathing out of the water. The weather is sultry, and when the rainstorm comes, it will come out of the water frequently and fall together. The masses call it "Baiji Dolphin Worship River".

Baiji dolphin is a carnivore with poor eyesight. It finds food through its own ultrasonic signal and then suddenly swallows it. Their feeding habits are mainly fish, and they often feed in shallows, bifurcated streams and tributaries. Its food intake is very large, and the general food intake can account for 10% ~ 12% of the body weight.

The female is 6 years old and the male is 4 years old. The reproductive mating period is from April to June, the pregnancy is about 9 months, and the baby is delivered in the river in February of the following year. Female dolphins only give birth to 1 baby every year, each baby 1 baby, and occasionally give birth to twins. Newborn dolphins grow up by feeding their mothers' milk and act with the group.

Great changes have taken place in the ecological environment of the Yangtze River after the completion of Gezhouba and Three Gorges Dam. The development of shipping industry, river regulation, the increase of motorboats, water pollution, siltation of rivers and lakes, the use of harmful fishing gear and harmful fishing methods, etc. , a serious threat to the ethnic continuation of the baiji dolphin. According to the measured statistics, the resources of Yangtze baiji dolphin are less than 100, far less than the national treasure giant panda. In order to prevent the extinction of the baiji in nature, the state has listed it as a first-class protected animal, and designated the Swan Island Ancient Road in the Yangtze River and Tongling section in Anhui Province as nature reserves to protect and multiply baiji resources and save endangered species. White fin dolphin

White-fin dolphin is commonly known as white fin, white clip and hippo. It belongs to mammals, cetaceans and baiji. Its distribution is limited to the middle and lower reaches of the Yangtze River, especially in the Yangtze River section of Hunan, Hubei, Anhui and Jiangsu below Shashi, Hubei.

Baiji dolphin is a rare aquatic mammal endemic to China. It is a valuable material for studying cetacean evolution and biological evolution. It has a developed brain and is an intelligent animal. It has special functions such as "echolocation" and sonar. Streamlined figure, rich subcutaneous fat and fast swimming, these structures have important scientific value in bionics.

Baiji dolphin is spindle-shaped. The snout is extremely long and narrow, and the maxilla and mandible are almost the same length and slightly upturned. The body length is six times that of a kiss. Body color: the back is bluish gray and the abdomen is white. There are semicircular white wide lines on both sides of the neck, behind the ear hole and above the flippers, and there are two half-moon white wide lines on the tail side above the anus.

Baiji dolphins like to move in the mainstream areas of rivers far from the shore, and belong to hydrophobic dolphins. There is a habit of clustering in action, often moving in the middle of the river in groups of three or five, and occasionally entering the confluence of lakes, tributaries and the main stream of the Yangtze River. Baiji dolphin breathes with its lungs and comes out of the water for air every minute or two. When breathing, the head always comes out of the water first, sometimes spraying water, and making a sound when breathing out of the water. The weather is sultry, and when the rainstorm comes, it will come out of the water frequently and fall together. The masses call it "Baiji Dolphin Worship River".

Baiji dolphin is a carnivore with poor eyesight. It finds food through its own ultrasonic signal and then suddenly swallows it. Their feeding habits are mainly fish, and they often feed in shallows, bifurcated streams and tributaries. Its food intake is very large, and the general food intake can account for 10% ~ 12% of the body weight.

The female is 6 years old and the male is 4 years old. The reproductive mating period is from April to June, the pregnancy is about 9 months, and the baby is delivered in the river in February of the following year. Female dolphins only give birth to 1 baby every year, each baby 1 baby, and occasionally give birth to twins. Newborn dolphins grow up by feeding their mothers' milk and act with the group.

Great changes have taken place in the ecological environment of the Yangtze River after the completion of Gezhouba and Three Gorges Dam. The development of shipping industry, river regulation, the increase of motorboats, water pollution, siltation of rivers and lakes, the use of harmful fishing gear and harmful fishing methods, etc. , a serious threat to the ethnic continuation of the baiji dolphin. According to the measured statistics, the resources of Yangtze baiji dolphin are less than 100, far less than the national treasure giant panda. In order to prevent the extinction of the baiji in nature, the state has listed it as a first-class protected animal, and designated the Swan Island Ancient Road in the Yangtze River and Tongling section in Anhui Province as nature reserves to protect and multiply baiji resources and save endangered species.