Insects are small creatures that belong to the class Insecta. They have three main body parts: the head, thorax, and abdomen. Most insects have six legs and often have wings, which help them fly. They can be found in almost every environment on Earth, from forests to deserts. Insects play important roles in nature. They help pollinate plants, which is essential for growing fruits and vegetables. Some insects, like bees, are famous for this job. Others, like ladybugs, help control pests by eating harmful bugs. Overall, insects are vital for maintaining a healthy ecosystem.