Otter is a mammal of the genus Otter in the order Carnivorous, family Italidae. Otters are also known as otter cats, fish cats, water dogs, water wool, and water monkeys. Otters are distributed throughout China, including Europe, Asia, and northern Africa. Otters are semi aquatic animals that often inhabit rivers, lakes, or streams, as well as their banks. They can even be found in rice paddies and are more common in areas with gentle water flow. Otters mainly feed on fish. Due to poaching and other issues, otters face significant threats to their survival in countries such as Asia, and their overall population is declining. The otter is now listed in China's "National Key Protected Wildlife List" and recognized as a second-class protected animal in the country.

Camel deer is a mammal of the camel genus in the family Camelidae of the order Artiodactyla. Camel deer have a larger body size, generally ranging from 2-2.6 meters in length.. The moose is named after its hump shaped back hump and horn shaped lower jaw. Camel deer are distributed in subarctic regions such as Russia, Northern Europe, and North America, and are also found in the Greater and Lesser Khingan Mountains of Northeast China. Camels have a high status in many cultures. However, due to hunting and habitat destruction, the number of moose has decreased, and it is now listed in China's "National Key Protected Wildlife List" and recognized as a first level national key protected animal.