How many legs does a spider have?
Spiders are air-breathing arthropods that belong to the class Arachnida and have four pairs of limbs for a total of eight legs. The legs are divided into seven parts, and they use hydraulic pressure to move and extend them. They have exterior muscles in the legs that are located in the hip joint. Approximately 120 families and more than 48,200 species of spiders had been identified by 2019. They differ from insects since they lack antennas and always have an extra pair of legs. 