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Related Concept Videos

Echo01:06

Echo

666
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,...
666

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Related Experiment Video

Updated: Oct 18, 2025

Eliciting and Analyzing Male Mouse Ultrasonic Vocalization USV Songs
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Sensory biology: Tree mice use echolocation.

Gareth Jones1

  • 1School of Biological Sciences, University of Bristol, 24 Tyndall Avenue, Bristol BS8 1TQ, UK.

Current Biology : CB
|September 28, 2021
PubMed
Summary
This summary is machine-generated.

Soft-furred tree mice utilize echolocation for navigation, emitting ultrasonic sounds. This finding reveals convergent evolution in ear bone structure and sensory genes with bats and dolphins.

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Area of Science:

  • Zoology
  • Bioacoustics
  • Evolutionary Biology

Background:

  • Echolocation is a sensory system used by some animals for navigation and detecting objects.
  • Bats and dolphins are well-known for their sophisticated echolocation abilities.
  • The sensory capabilities of rodents, particularly in relation to echolocation, are less understood.

Purpose of the Study:

  • To investigate the navigational mechanisms of soft-furred tree mice.
  • To determine if soft-furred tree mice use echolocation.
  • To explore potential evolutionary links in sensory systems between rodents, bats, and dolphins.

Main Methods:

  • Recording and analyzing ultrasonic vocalizations emitted by soft-furred tree mice.
  • Comparative analysis of ear bone morphology in soft-furred tree mice, bats, and dolphins.
  • Examination of sensory gene evolution in these species.

Main Results:

  • Soft-furred tree mice were confirmed to use echolocation, emitting ultrasonic broadband chirps for orientation.
  • Significant similarities in ear bone morphology were observed between soft-furred tree mice and echolocating mammals like bats and dolphins.
  • Convergent evolution was evident in the genetic basis of sensory systems related to echolocation.

Conclusions:

  • The study provides the first evidence of echolocation in soft-furred tree mice.
  • This finding highlights remarkable convergent evolution in sensory systems across distantly related mammals.
  • The research expands our understanding of mammalian sensory diversity and evolutionary adaptations.