Which Insects Are Spiders?
WouterInsects are grouped with arachnids and crustaceans in the Phylum Arthropoda. These groups share a common ancestry. They also have several characteristics in common.
Insects have six legs, two compound eyes, and a three-part body. A grub-like larva becomes an adult insect. Some species have more than eight eyes, but the majority have just three. In addition to these physical characteristics, insects are classified as members of the Class Insecta.
Spiders are classified as members of the Arachnida. This group includes arachnids, scorpions, mites, and ticks. They have a distinctive body structure and a complex exoskeleton.
Insects and spiders have a lot in common, but they have many differences as well. Spiders are carnivores, while insects are herbivores. They have six legs, a three-part body, and a specialized digestive system. Insects have wings for flight, but spiders do not.
The majority of insects, including spiders, are harmless. However, some species are venomous. This venom is made of enzymes that liquefy the internal organs of their prey. Some spiders, such as the black widow, have venom that is fatal to humans. Some spiders also use elaborate mating rituals.
The jaws of insects are armed with teeth, which meet like scissors blades. They hinge at the outer rear corners. A few larger species also prey on birds.
Insects are divided into several sub-groups. Some insect sub-groups include flies, gnats, mosquitoes, and ticks. Other groups include stink bugs, planthoppers, and cicadas.
Arachnids are a more diverse animal group. They have eight or more legs, but some arachnids only have six. They have an exoskeleton, a specialized digestive system, and a body that does not change shape.
