Question

0_0

Why Elephants can hear low notes of sound ​

Answer 1

The human ear can hear many elephant sounds, but an intriguing fact is that some of their vocalizations are infrasonic, and thus are inaudible to humans.  Low frequency sounds (long wavelengths meeting little resistance) travel farther than high frequency sounds, which makes them ideal for long distance communication.

Answer 2

An international team of voice researchers and cognitive biologists provides new insights into the production of elephant communication. The so-called "infrasounds", i.e. sounds with pitches below the range of human hearing, are found to be produced with the same physical mechanism as human speech or singing.