It is a species of bear in the family Ursidae and is the largest terrestrial carnivore in the world, also known as the white bear. The body is large and robust, with a shoulder height of up to 1.6 meters. Polar bears live in waters covered by ice in the Arctic Circle. The depth of winter caves can reach the permafrost layer. The preferred habitat is the floating ice in the Arctic Ocean. The fractured and refrozen ice edges and pressure ridges provide the best hunting grounds. Generally acting alone, except during mating and lactation periods. The main prey is seals, and even larger species such as walruses and beluga whales. It also preys on seabirds, fish, small mammals, and sometimes cleans up carrion.

Lizards are reptiles belonging to the family Varanidae in the order Scorpaeniformes. Lizards are distributed on all land except for Antarctica and a few Arctic regions. Lizards have a relatively fixed living environment, with only a few living in high mountains or water. There are approximately 5461 species of lizards in the world, which are one of the most charming reptiles due to their diverse body color, appearance, and obedience. Many species are kept as pets. Modern genetic research has shown that lizards and snakes are a group, with snakes evolving from lizards. Lizards have a snake like body, thin scales, are four or five inches long, and have four limbs, hence they are also known as "four legged snakes".

Snails are mollusks of the family Snails, with over 25000 known species worldwide. Snails are named because they have two horn like antennae on their heads when crawling. Snails have a wide variety of species and are distributed around the world. Snails like to live in dark, damp, loose, and humus rich environments. They work during the day and stay up at night, and are most afraid of direct sunlight, making them sensitive to environmental reactions. Snails mainly feed on plant-based foods, especially vegetables, fruit tree buds, and crop roots and leaves. Snails are a well-known traditional Chinese medicine with a sweet, salty, and cold taste. They have the effects of clearing heat, diuresis, detoxification, reducing swelling, relieving heat, removing phlegm, and promoting lactation.