Multiple choice

Bats can fly on the dark without hitting objects because ______.

  1. they are flying mammals

  2. their night vision is good

  3. they are guided by ultrasonic waves which they produce

  4. of no scientific reason

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

Bats possess a sophisticated biological sonar system called echolocation. They emit ultrasonic pulses through their mouth or nose, and analyze the returning echoes to create a mental map of their surroundings. This allows precise navigation and detection of prey in complete darkness.