Insect - Wikipedia
The body of an insect has three main parts: a head, a thorax, and an abdomen. On the head are an insect's compound eyes, its two antennae (they feel and smell things), and its mouth. On the thorax, insects have wings and legs. All insects have six legs (three pairs of jointed legs) and usually four wings (two pairs).
Insect | Definition, Characteristics, Types, Beneficial, Pest ...
Insects is a monthly online journal that publishes peer-reviewed research on insect ecology, diversity, conservation, molecular biology, genomics, physiology, and more. Browse the latest articles on topics such as flight dispersal, pheromone biosynthesis, wingbeat frequency, and reproductive diapause.
List of insects | Britannica
Learn about the classification of insects, the largest arthropod class with nearly 1 million known species and an estimated 5-10 million undescribed species. Find out how insects are divided into two subclasses, Apterygota and Pterygota, and into 27 orders of Pterygota by wing form. Explore the body plan, life cycle, and examples of different types of insects.
Insects Pictures & Facts - National Geographic
Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen ), three pairs of jointed legs, compound eyes, and a pair of antennae. Insects are the most diverse group of animals, with more than a million described species; they represent more than half of all animal species.
Insect - Simple English Wikipedia, the free encyclopedia
Learn about the main body parts and structures of insects, such as the integument, head, thorax, and abdomen. Discover how insects use their sensory organs, mouthparts, wings, and legs for different purposes and adaptations.
Classification of insects | Britannica
Learn about the characteristics, life-cycles, roles and importance of insects, the largest class of animals on Earth. Discover over one million insect species with free printable quizzes and worksheets. Find out how insects are arthropods, how they breathe, and how they evolved from the first insects.
What Are Insects? Basic Insect Anatomy - ThoughtCo
Learn about the diversity and classification of insects, the largest group of animals on Earth. Browse an alphabetical list of significant insects grouped by order and family, with photos and descriptions.
What are insects? - The Australian Museum
Insect - Adaptation, Metamorphosis, Diversity: Most insects begin their lives as fertilized eggs. The hatching of young larvae is achieved in several ways. Insects undergo one of two types of metamorphosis: incomplete or complete.
What Is an Insect? - Smithsonian National Museum of Natural History
Large-scale sampling projects, as carried out in two investigations of insect diversity, show a way forward. To a first approximation, all multicellular species on Earth are insects 1, and yet ...
Insects - A-Z Animals
An insect's abdomen contains most of the internal organs. Like other arthropods, insects have a complete digestive system. They also have an open circulatory system and central nervous system.