What do spiders belong to?

Spiders, in animal taxonomy, belong to Arthropoda, Arachnida and Arachnida. Arachnida is a small or medium-sized arthropod with a total of 14 orders, of which 5 orders have become extinct. 66 families of 7 orders of Araneae have been found in China. Such as Taraxaceae, Crab, Arachnida, Arachnida, Arachnida and so on.

Spider, arthropod, body length 1 ~ 90 mm, body is divided into chest (front) and abdomen (back). The head and chest are covered with carapace and chest plate. There are two pairs of appendages in the head and chest. The first pair is pliers, with a forceps tooth and a poisonous gland opening at the tip of the forceps tooth. The pincers in the suborder Orthopalatine move back and forth, and the pincers move sideways and towards each other.