invertebrates

Invertebrates are animals that lack a backbone or spinal column. They make up the majority of animal species on Earth, including insects, arachnids, mollusks, crustaceans, worms, and many marine animals. Despite not having a backbone, they can have complex bodies and behaviors. Invertebrates play vital roles in ecosystems, such as pollinating plants, decomposing organic matter, and serving as food for other animals. Their diverse forms and adaptations allow them to thrive in nearly every environment, from deep oceans to forests and deserts.