Superhippo's hearing relies on more than big ears

The study reveals that elephants use ground vibrations to communicate over distances exceeding four kilometers, transmitting these vibrations through their skeletal structure until they reach the inner ear. This ability involves emitting low-frequency sounds ranging between 10 and 20 Hertz, allowing them to communicate with distant family members in the savannah and relay information about the environment and potential dangers. Researchers have demonstrated that sound transmission occurs through bone conduction, where the middle ear receives the vibrations via the skull, relying less on the outer ear. The auditory ossicles in the middle ear are significantly larger than those in humans, enhancing their capacity to detect and interpret low-frequency sounds over long distances.

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