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  1. Insect - Wikipedia

    Insects (from Latin insectum) are hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax …

  2. List of insects | Britannica

    entomology, branch of zoology dealing with the scientific study of insects. The Greek word entomon, meaning “notched,” refers to the segmented body plan of the insect. The zoological categories of …

  3. Insect - Definition, Types, List, Life Cycle, Anatomy, & Pictures

    Dec 30, 2025 · Insects are six-legged invertebrates that are members of the class Insecta within the phylum Arthropoda. They are distinguished by their three-part bodies covered by a hard, chitinous …

  4. Insects Pictures & Facts - National Geographic

    All insects belong to the phylum Arthropoda. But unlike other arthropods—like lobsters, spiders, or millipedes—insects have three pairs of jointed legs, segmented bodies, an exoskeleton, one...

  5. Classification of Insects - Basis of insect classification and ...

    Sep 25, 2024 · Below is a detailed overview of the primary insect orders that comprise disease vectors, highlighting their distinct characteristics and roles in disease propagation.

  6. Insect, Bugs and Spider Identification - North America

    There are over 1 million identified species of insects and spiders in the world with many more still awaiting discovery. Insects provide a vastly overlooked - and often times misunderstood - window …

  7. "While all insects could be called creepy-crawlies, not all creepy ...

    6 days ago · More than half of all the animal species described by science are insects, and it is estimated that there are more than five million extant species. That’s a lot of beetles, butterflies, …

  8. Insect Basics - US Forest Service

    Six legs, three body parts (HEAD, THORAX, and ABDOMEN), a hard EXOSKELETON, and compound eyes characterize insects. Most insects have a pair of antennae and two pairs of wings. Insects grow …

  9. What Is Entomology? | Entomological Society of America

    What Is an Insect? Animals with exoskeletons are called arthropods. Insects are a kind of arthropod featuring a three-part body (head, thorax, and abdomen), six legs, compound eyes, and antennae. …

  10. What Is An Insect? Insect Facts & 5 FAQ [2026 ] | Earth Life

    Insects are like the unsung heroes of the animal kingdom. They pollinate plants, break down organic matter, and serve as a vital food source for other animals. But despite their importance, many people …