Invertebrates
Simply put, an invertebrate is an animal without a backbone, which includes insects, worms, spiders, crustaceans, and others. More than 98% of all known animals are invertebrates, the majority of which are insects. Over 1 million insect species have been identified. Instead of having bones to support the body, insects have a hard outer covering called an exoskeleton. They have six jointed legs and three body parts—head, thorax, and abdomen. Most insects have a pair of antennae and two pairs of wings. Insects are important as pollinators, decomposers, and sources of foods and products such as honey, silk, and wax.
Insects
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Millipedes & Centipedes
Scorpions
Spiders
Spider Relatives
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