Lynx, alias lynx and lynx, belongs to the cat family, and its scientific name is Felis lynx. It is like a cat, much bigger than a cat, and is common in forest bushes, dense forests and rocks. Likes to live alone, is good at climbing and swimming, has strong hunger tolerance, can lie still in one place for a few days, is not afraid of the cold, and likes to kill large and medium-sized mammals such as roe deer. It is distributed in the northeast, northwest, north and southwest, and belongs to the national second-class protected animals.

Chinese alligator, swan with wart nose, cormorant and frog with black spot-wetland ecosystem.

Chinese alligator is a unique crocodile in China and one of the smallest crocodile species in the world. It is not only ancient, but also an endangered reptile in the world. Many features of dinosaurs and reptiles can still be found in Chinese alligators. Therefore, people call the Chinese alligator a "living fossil". Therefore, alligator sinensis is of great significance for people to study the rise and fall of ancient reptiles and the evolution of paleogeology and biology. China has listed the Chinese alligator as a national first-class protected animal, and killing is strictly prohibited. In order to keep the competition of this precious animal going, China has also established nature reserves and farms for artificially raising Chinese alligators in Anhui and Zhejiang.

Swan with wart nose (scientific name: Cygnus olor) is also known as swan with wart nose, dumb swan, red-billed swan, Yuanyang with wart nose, bright swan and so on. It is a large swimming bird with a white body color, a slender neck and a wart on its forehead, hence the name. Swan with wart nose is widely distributed, mostly in Europe and a few in Asia. Habitat in swamps, lakes, rivers, but also in coastal salt water areas. Mainly eat underwater parts of plants, occasionally eat a small amount of invertebrates, amphibians, insects, fish and shrimp. Put your head upside down in the water while foraging.

Cormorants, also known as water crows and osprey. It belongs to Moraceae 1 genus with 30 species. Birds. The body is longer and narrower than a duck, and its feathers are metallic black. It is good at diving and fishing, and flies in a straight line. Many animals in South China help fish. Except for the north and south poles, it is almost all over the world. This kind of bird can be domesticated and fished, and it has been domesticated and utilized in ancient China. This is a common caged and free-range bird. Wild cormorants are distributed all over the country and breed in Northeast China, Inner Mongolia, Qinghai Lake and western Xinjiang.

Rana nigromaculata is a 1 species forest frog. Commonly known as "frog" and "frog". Habitat around farmland, especially rice fields.

Eel marine ecosystem

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