The Order Chiroptera comprises all bats, the only mammals capable of sustained flight. Bats have forelimbs modified into wings, enabling agile and energy-efficient flight. They are highly diverse, with over 1,400 species worldwide, occupying nearly every habitat except extreme polar regions. Chiropterans are divided into megabats (fruit-eating, often with good eyesight) and microbats (insect-eating, using echolocation to navigate and hunt in the dark). Bats play critical ecological roles as pollinators, seed dispersers, and insect population controllers, making them essential for ecosystem balance and agriculture.