
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 …
Insect | Definition, Characteristics, Types, Beneficial, Pest ...
Feb 6, 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 …
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 …
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...
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 …
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.
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 …
What Is an Insect? The Definition and Key Characteristics
Aug 25, 2025 · Insects represent a diverse group of animals, inhabiting nearly every corner of Earth. These creatures play a significant role in various ecosystems, contributing to processes like …
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 …
What Are Insects? Basic Insect Anatomy - ThoughtCo
May 4, 2025 · As you may remember from elementary school, the most basic definition of an insect is an organism with three pairs of legs and three body regions: head, thorax, and abdomen.