Bats are divided into two major groups. Megachiroptera or mega bats are medium- to large-size bats. Many eat fruit, pollen, or nectar; some eat small land animals, and some eat fish. They have big eyes and excellent eyesight.
The other major group is Microchiroptera or micro bats, which are smaller bats that eat mostly insects. They use echolocation, detecting sound waves to navigate and identify the flying insects they eat. Included in this group is the smallest bat, the Kitti’s hog-nosed bat, which weighs less than a penny.
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