To which group do scorpions belong?

Scorpions belong to the group known as arachnids, which is a class within the phylum Arthropoda. This classification is significant because arachnids are characterized by having eight legs, a body divided into two main segments (cephalothorax and abdomen), and lack antennae. Scorpions also possess specialized body structures such as pincers (chelae) and a venomous tail used for defense and capturing prey. Other common members of the arachnid class include spiders, ticks, and mites, all of which share these defining characteristics.

In contrast, insects, crustaceans, and mollusks are separate groups with distinct anatomical and physiological features. Insects, for instance, have six legs and typically possess wings, while crustaceans, such as crabs and lobsters, are often aquatic and have a hard exoskeleton. Mollusks, including snails and octopuses, are characterized by soft bodies, and most have a hard shell. Understanding these differences helps clarify the unique features of each group, highlighting why scorpions are correctly classified as arachnids.