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Related Experiment Videos

Hearing in the elephant (Elephas maximus)

R Heffner, H Heffner

    Science (New York, N.Y.)
    |May 2, 1980
    PubMed
    Summary
    This summary is machine-generated.

    Indian elephants have a wide hearing range from 17 Hz to 10.5 kHz. This study confirms that larger mammals also follow the rule linking ear distance to high-frequency hearing limits.

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    Area of Science:

    • Zoology
    • Bioacoustics
    • Mammalian Physiology

    Background:

    • Understanding auditory capabilities in large mammals is crucial for bioacoustics research.
    • Previous studies suggest a relationship between physical characteristics and hearing limits.

    Purpose of the Study:

    • To determine the auditory thresholds of an Indian elephant.
    • To investigate the relationship between functional interaural distance and high-frequency hearing in a large mammal.

    Main Methods:

    • Auditory brainstem response (ABR) or similar electrophysiological methods were used to assess hearing.
    • Sound stimuli across a range of frequencies were presented to the elephant.

    Main Results:

    • The Indian elephant exhibited a hearing range from 17 Hz to 10.5 kHz.

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  • A significant inverse correlation was observed between functional interaural distance and the high-frequency hearing limit.

    • Conclusions:

    • The findings validate the inverse relationship between interaural distance and high-frequency hearing in very large mammals.
    • This research contributes to the understanding of auditory adaptations in elephants and other megafauna.