Are insects part of the animal kingdom?

The term arthropod comes from the Greek word meaning “jointed feet,” and includes other similar animals such as crustaceans and arachnids. Insects are one of the largest classes of animals with over a million different species. ... The legs and wings provide insects the ability to walk, fly or occasionally even swim. read more

Insects have an external skeleton, called an exoskeleton. They also have a three-part body including the head, thorax, and abdomen. The head includes the brain, a pair of compound eyes, mouth parts, and two antennae. The thorax has three pairs of jointed legs, and on some insects, one or two pairs of wings. read more

Traditionally, bacteria belong to the Animal Kingdom. Recent DNA research, however, suggests that they may be more closely related to plants. read more