Which of the following species can hear the infrasonic sound?
Options:
dog
bat
rhinoceros
human beings
Correct Answer:
rhinoceros
Explanation:
Rhinos have extremely good ears, picking up infra-sound far deeper than the range of human hearing. Rhinos, can hear down to a frequency of four hertz, whereas even a human baby, with entirely undamaged ears, can normally only pick up sounds as low as 20 hertz. Giraffes and elephants can also hear in this infra-sound range.