Rhino, hippopotamus, kingfisher and baiji are endangered species.

Baiji dolphin is an endangered species. In 202 1 year, there are about 10 baiji. Baiji dolphin is an animal of the genus Baiji, belonging to Cephalopoda. Mainly living in the middle and lower reaches of the Yangtze River and its connected waters, such as Dongting Lake, Poyang Lake and Qiantang River. It feeds on freshwater fish and often swims to the shallow waters on the shore at dawn and dusk to prey.

The baiji is spindle-shaped, with a body length of 1.5-2.5 meters and a weight of 230 kg. The snout protrudes forward like a bird's beak, narrow and long, with the tip of the snout slightly upturned, about 30 cm. The forehead and ceiling are obviously raised, the nostrils are long on the top of the head, and the eyes are very small, behind and above the quarrel. The dorsal fin is triangular, the flippers are wider, the ends are blunt and round, and the caudal fin is crescent-shaped.

Rare aquatic mammal baiji dolphin

Known as the goddess of the Yangtze River, the giant panda in the water and the national treasure in the water. Baiji dolphin is an ancient relic of its family. Fossil evidence shows that it appeared in the Yangtze River in the late Miocene 5.3 million years ago.

Since the late 20th century, the number of cetaceans has been seriously damaged by human activities, and it was listed as a national first-class protected wild animal in 1988. However, the remaining population is still gradually extinct, and it is considered to be the first cetacean to be extinct due to human factors.