Insectivorous bats are a group of bats that primarily feed on insects. They play a crucial role in controlling insect populations, consuming large quantities of pests like mosquitoes and agricultural insects. These bats use echolocation to navigate and locate their prey in the dark, emitting high-frequency sounds that bounce off objects. There are over 1,000 species of bats, and many of them are insectivorous. Common examples include the little brown bat and the Mexican free-tailed bat. By maintaining the balance of ecosystems, insectivorous bats contribute to agriculture and help reduce the need for chemical pesticides.