- Insects are arthropods and there are over 1 million species, representing over 90% of all living things on the earth. They may be found in nearly all environments on the planet.
- Insects are divided into 32 groups and the largest group is the beetle. 1 out of every 4 insects is a beetle.
Insects have three body parts. A head, a chest or thorax, and a stomach or abdomen. They also have six jointed legs, two antennae, and an exoskeleton which has sense organs for sensing light, sound, temperature, wind, pressure, and smell.
- Most insects can fly.
- Bugs do not have lungs, most have compound eyes and they are cold-blooded.
- Insects were the earliest organisms to produce sounds and to sense them.
- Bugs are the only group of invertebrates to have developed flight.
- Insects eat more plants than any animal on earth. They eat dead plants and animals and they themselves are a main source of food for many other animals.
- Bugs are useful because they produce honey, wax, silk and other products. They pollenate flowers and crops. They are a problem to farmers because they destroy crops. They also carry disease and are a major pest to animals and people.
- Some insects, like ants and bees, live in colonies but most insects live independently. Most insects also lead short lives as adults, and rarely interact with one another except to mate, or compete for mates.
- Most insects hatch from eggs.
- 160 insect species are either presumed extinct or missing.
- Insects usually go through four separate life stages: egg, larva or nymph, pupa, and adult. The eggs are laid one at a time or in masses, in or on plants, or even inside another insect. Eventually, a larva, or nymph emerges from the egg.
- In many species of wasps, unfertilized eggs become males, while fertilized eggs become females.
- Insects may reproduce by laying eggs, or in some species, the eggs hatch inside the female and are born a short time later.
- Most species of insects have males and females that mate and reproduce sexually. When there aren’t any males, females of some species may still reproduce.
Book of Insect Records
Bug and Insect Crafts
Bugs – Insects 4 Kids
Caterpillars and Mystery Bugs
Children’s Butterfly Site
Entomology for Kids and Teachers
Entomology Image Gallery
Entomology for Beginners
Guide to Great Insect Sites
Insects at Enchanted Learning
Insects in the City
Insects: What Good Are They Anyway?
Iowa State University’s Tasty Insect Recipes
Just for Kids
Let’s Talk About Insects
Most Wanted Bugs: Photo Gallery
Mystery Bug Webquest
Orkin – Insect Games
University of Kentucky: Bug Food
Welcome to the Wonderful World of Insects
What Is An Insect?
What Is It?
What’s That Bug?
Yahoo Kids – Insects
Yucky Roach World