Our insect pages are seperated by the orders contained in the Animal Class Insecta. Back to Category listings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Insects are in the phylum of arthropods and comprise of over 1 million species. That is more than all other species of animal life combined. Most insects have wings at some point in their lives, though not all.
All insects have six legs and three unique body sections.
The three sections are the Head, the Thorax, and the Abdomen. They have a tough outer section called an exoskeleton. Insects breath through tiny holes called spiracles along the sides of their bodies. All insects lay eggs, and most go through four stages of metamorphosis. Grasshoppers, Cockroaches, Earwigs and Aphids will go through only three stages of growth.