Starfish are echinoderms of the order Syngnathidae, also known as sea chariots or starfish. Flat, star shaped, with a hollow wrist. Vibrant colors. Generally, it is hermaphroditic, with some cases being hermaphroditic. The lifespan can reach up to 35 years. Starfish are distributed in various seas around the world, with the North Pacific having the highest distribution. It can also be seen along the coasts of Bohai and Yellow Seas in China. Likes to live in groups and often inhabits the seabed with sand, rocks, or coral. In terms of medical value, the ingredients contained in starfish have good therapeutic effects on hyperlipidemia and cardiovascular and cerebrovascular diseases. Starfish can also extract gelatinous substances from their bodies to make capsules. In industry, it is commonly used to process into powdered feed.

The Mexican salamander is a species of amphibian in the family Salamandridae. Bare skin without scales; Both limbs and feet are short; Without vocal cords, unable to produce vocalizations; There are six external gill whiskers on both sides of the head, so it is also called a hexagonal dinosaur. The Mexican blunt mouthed salamander is distributed in central Mexico and is an endemic species of Mexico, famous for its unique appearance and juvenile continuation. The Mexican salamander is classified as critically endangered (CR) on the IUCN Red List of Threatened Species. In China, it is legal to buy and sell artificially bred Mexican salamanders as pets, but it is not allowed to buy and sell wild Mexican salamanders.

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".