It is a family of spiders, with approximately 2500 species worldwide. From small to large in size. Many species of the genus have sexual dimorphism, with male spiders being much smaller than female spiders. There are many types of garden spiders, distributed all over the world, including Xinjiang, Hubei, Guangxi, Shaanxi, and Hainan in China; Strong adaptability, able to live or network on the soil surface, in the soil, on trees, between grasses, under rocks, in caves, near water, low-lying areas, shrubs, mosses, inside and outside houses, or inhabit freshwater, coastal lake zones, with traces in water, land, and air. Garden spiders have high medical, health, and culinary functions.

Giant scorpions are a type of scorpion from the Carboniferous period, with a body length exceeding one foot. They evolved from sea scorpions and can grow up to 1-3 meters in length. They are very similar to modern scorpions, with huge pincers and tail spines. Giant scorpions feed on giant spiders and arthropods. They should first use their tail spines to kill their prey, and then use their huge pincers to tear them apart. Later, it became extinct due to insufficient oxygen.