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Related Concept Videos

Communication01:03

Communication

Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.
Pollination and Flower Structure02:40

Pollination and Flower Structure

Flowers are the reproductive, seed-producing structures of angiosperms. Typically, flowers consist of sepals, petals, stamens, and carpels. Sepals and petals are the vegetative flower organs. Stamens and carpels are the reproductive organs.
Convergent Evolution01:54

Convergent Evolution

Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.The structures that arise from convergent evolution are called analogous structures. They are similar in function even if they are dissimilar in structure. Further, structures can be analogous while also...
Echo01:06

Echo

The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case, then the...

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Related Experiment Video

Updated: Jul 6, 2026

Recording Mouse Ultrasonic Vocalizations to Evaluate Social Communication
10:28

Recording Mouse Ultrasonic Vocalizations to Evaluate Social Communication

Published on: June 5, 2016

Communication in the tasmanian devil (Sarcophilus barrisii) and a survey of auditory communication in the

J F Eisenberg, L R Collins, C Wemmer

    Zeitschrift Fur Tierpsychologie
    |June 1, 1975
    PubMed
    Summary

    Tasmanian devil communication involves visual, chemical, tactile, and auditory signals. Their vocalizations, with four basic syllable types, convey information across diverse contexts, similar to Eutherian mammals.

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    Electroencephalography Measurements in Awake Marmosets Listening to Conspecific Vocalizations

    Published on: July 26, 2024

    Area of Science:

    • Ethology
    • Animal Communication
    • Behavioral Ecology

    Background:

    • Understanding the communication systems of marsupials, particularly the Tasmanian devil (Sarcophilus harrisii), is crucial for conservation and evolutionary biology.
    • Previous research has often overlooked the complexity of marsupial auditory signals due to their low intensity.

    Purpose of the Study:

    • To analyze the female-male interaction system of the Tasmanian devil in captivity.
    • To describe the visual, chemical, tactile, and auditory signals used by Tasmanian devils.
    • To classify Tasmanian devil vocalizations and explore their probable functions, comparing them with other marsupials.

    Main Methods:

    • Observational study of Tasmanian devils in a captive environment.
    • Detailed recording and analysis of vocalizations during social interactions.
    • Classification of auditory signals into basic syllable types.
    • Comparative analysis of marsupial vocalizations.

    Main Results:

    • Four basic syllable types were identified in Tasmanian devil vocalizations.
    • These vocalizations are related to at least four different functions, demonstrating adaptability for various contexts.
    • Marsupial vocalizations, though subtle, exhibit a complexity comparable to many Eutherian mammals.
    • The study provides a description of visual, chemical, and tactile signals in addition to auditory ones.

    Conclusions:

    • Tasmanian devil communication is multimodal, incorporating various sensory channels.
    • Marsupial vocalizations are complex and serve diverse communicative purposes, challenging previous assumptions about their simplicity.
    • The identified vocalization types represent adaptations for conveying information in multiple contexts.
    • Establishing homologies among marsupial vocalizations presents challenges but is essential for understanding evolutionary pathways.