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Insects 101

Insects are the largest and most diverse group in the animal kingdom. Begin your study of this amazing group here by learning the basics of entomology. These articles cover insect anatomy, behavior, growth, and defenses.
  1. Adaptations (1)
  2. Behavior & Communication (10)
  3. Entomology Glossary (91)
  4. Growth & Metamorphosis (2)
  5. Insect Bodies (9)
  6. Insect Defenses (3)
  7. Mating & Reproduction (6)

What Are Insects?
Insects are arthropods with three pairs of legs and three body regions – head, thorax, and abdomen. This article will teach you more about an insect's external anatomy and how they are classified.

The Insect Index - Sorted Alphabetically
An index of insects and insect groups profiled on this site, sorted by common names.

The Insect Index - Sorted by Insect Orders
An index of insects and insect groups profiled on this site, sorted by taxonomic orders.

A Guide to the Twenty-Nine Insect Orders
Familiarity with the twenty-nine insect orders is the key to identifying and understanding insects. This introduction will help you get acquainted with their scientific names and the major insect families in each order.

How Insects Fly
Insect flight remained something of a mystery to scientists until recently. Advances in camera technology have allowed scientists to film insects flying, and analyze their movements. Here's what we know about how insects fly.

What is the Difference Between Venomous and Poisonous?
The terms venomous and poisonous are often used interchangeably, but incorrectly. There is, in fact, a difference between a venomous insect and a poisonous insect.

Which Insect Has the Most Toxic Venom?
Among the venomous insects, some possess only mildly toxic venom, while others pack a serious punch capable of taking down a threat as large as a person. Which insect has the most toxic venom of all?

Everything You Ever Wanted to Know About Insect Poop
Do insects poop? Of course, but we call their poop frass. Insect poop is pretty important stuff. It keeps ecosystems in balance, feeds insect young, and even helps some bugs defend themselves from predators.

A List of the Twenty-Nine Insect Orders
Becoming familiar with the twenty-nine insect orders is an important step in learning to identify and study insects. This list includes the name of each order, the major insect groups in that order, and the approximate number of species worldwide.

Do Insects Feel Pain? – How Do We Know If Insects Feel Pain?
Do Insects Feel Pain? – How Do We Know If Insects Feel Pain?

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