The term for an animal that primarily eats insects is "insectivore." Insectivores include a wide range of species from different animal groups, such as mammals (like shrews and bats), birds (like warblers and swallows), reptiles (like certain types of lizards), and amphibians (like frogs). These animals have evolved specialized adaptations to capture, digest, and thrive on a diet consisting mainly of insects and other small invertebrates. Insectivory plays a significant role in ecosystems, aiding pest control and contributing to the balance of food webs. Many insectivores also have important ecological functions, including pollination and soil aeration.