Anita 27 Questions 18 Answers 0 Best Answers 136 Points View Profile 0 AnitaTeacher Asked: October 1, 20202020-10-01T23:41:08+05:30 2020-10-01T23:41:08+05:30In: GK How can bats fly in the dark ? 0 How can bats fly in the dark ? Share Facebook 1 Answer Voted Oldest Recent Anil Tiwari 47 Questions 19 Answers 0 Best Answers 227 Points View Profile Anil Tiwari Pundit 2020-10-01T23:42:10+05:30Added an answer on October 1, 2020 at 11:42 pm When the bats come out of their cells, we do not hear any sound, though in fact they usually make a series of sharp squeaks so high-pitched that the human ears cannot detect them. These high-pitched sounds are called ‘ultrasonic’ and have frequencies greater than 20 MHz. These sounds help the bats to avoid obstacles, because every solid thing reflects the echo, and the bats become conscious of the obstacle and the resulting possible danger. It is just like a radar. 0 Share Share Share on Facebook Share on Twitter Share on LinkedIn Share on WhatsApp You must login to add an answer. Username or email* Password* Remember Me! Forgot Password?