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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. Insect | Definition, Characteristics, Types, Beneficial, Pest ...

    Mar 31, 2026 · insect, (class Insecta or Hexapoda), any member of the largest class of the phylum Arthropoda, which is itself the largest of the animal phyla. Insects have segmented bodies, jointed …

  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. What Is an Insect? - Smithsonian National Museum of Natural History

    In this video for Grades 3 to 5, you’ll learn about the features all insects have. You will learn to identify an insect from other arthropods.

  7. 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. …

  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 An Insect? - Museum of the Earth

    What Is An Insect? Insects are the most diverse group of animals. They are arthropods: animals with a hard external skeleton, or exoskeleton. An exoskeleton is like a suit of armor, made of hardened …

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

    4 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, …