Can elephants hear ultrasonic sound?
Elephants can communicate using very low frequency sounds, with pitches below the range of human hearing. These low-frequency sounds, termed “infrasounds,” can travel several kilometers, and provide elephants with a “private” communication channel that plays an important role in elephants’ complex social life.
Can elephants hear humans?
Hearing. Elephants have good hearing, detecting sounds as low as 14 to 16 hz (human low range: 20 hz) and as high as 12,000 hz (human high range: 20,000). Research has shown that elephants are capable of recognizing calls and voices of particular individuals from 1 to 1.5 km (0.6-0.9 mi.) away.
Can we hear elephants?
Quick facts: All adult elephants can make infrasonic calls. Elephant rumbles usually have many harmonics – multiples of the fundamental frequency – and humans can hear these if the call is loud. Other animals that produce infrasonic calls include whales, rhinoceros, giraffes, and alligators.
Who can hear ultrasonic sound?
Ultrasound is not different from “normal” (audible) sound in its physical properties, except that humans cannot hear it. This limit varies from person to person and is approximately 20 kilohertz (20,000 hertz) in healthy young adults.
Why can’t humans hear ultrasonic sound?
Humans can’t also hear the ultrasound because it is more than 20,000 hertz. The waves are too small and fast for the inner ear to transmit the vibrations. 20,000 Hertz is the typical upper limit of hearing, there may be individuals who can detect some frequencies slightly above this range, but not much higher.
Can humans hear sonic sound?
Normal human hearing is recognised as having an upper bound of 15–28 kHz, depending on the person. Ultrasonic sinusoids as high as 120 kHz have been reported as successfully perceived.
Has a dolphin ever killed a trainer?
When in December 1994 two male swimmers, Wilson Reis Pedroso and João Paulo Moreira, were harassing and possibly attempting to restrain Tião, in a beach of Caraguatatuba, the dolphin broke the ribs of Pedroso and killed Moreira, who was later found to be drunk.