Insects are a group of small animals that form the largest group in the animal kingdom. They have three body segments (head, thorax, and abdomen), three pairs of legs, and two antennae. Insects play an essential role in many ecosystems, including pollination, decomposition, and predation. Insects have adaptations that allow them to survive in a variety of environments, from deserts to tropical forests. Their exoskeletons are hard and protect...