Multiple choice

Bats can fly in the dark because of ______.

  1. clipped wings

  2. ultrasonics

  3. anti-gravitational pull

  4. partial displacement of air

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Bats navigate and hunt in darkness using echolocation. They emit high-frequency ultrasonic squeaks (typically 20-100 kHz) beyond human hearing, and detect the echoes that bounce back from objects. This gives them precise spatial awareness even in complete darkness.