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Related Experiment Video

Updated: May 6, 2026

Determining Ultrasonic Vocalization Preferences in Mice using a Two-choice Playback Test

Determining Ultrasonic Vocalization Preferences in Mice using a Two-choice Playback Test

Published on: September 3, 2015

Echolocation in soft-furred tree mice.

Kai He^1,2, Qi Liu^1,3, Dong-Ming Xu¹

¹State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China.

Science (New York, N.Y.)

|June 18, 2021

Summary

This summary is machine-generated.

Soft-furred tree mice (Typhlomys) use echolocation to navigate in darkness. This study provides evidence of their ability to emit ultrasonic pulses and suggests they represent a new lineage of echolocating mammals.

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Last Updated: May 6, 2026

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Area of Science:

Zoology
Bioacoustics
Evolutionary Biology

Background:

Echolocation is a sensory system used by various animals to perceive their environment.
The ability to echolocate has evolved independently in several mammalian lineages.

Purpose of the Study:

To investigate the potential for echolocation in soft-furred tree mice (Typhlomys).
To identify the anatomical and genetic basis for echolocation in this species.

Main Methods:

Behavioral experiments to assess obstacle avoidance in darkness.
Skeletal analysis focusing on the stylohyal and tympanic bones.
Genomic analysis of hearing-related genes, including prestin.

Main Results:

Soft-furred tree mice demonstrated the ability to navigate and avoid obstacles using auditory cues and ultrasonic vocalizations.
Unique bone fusion in the stylohyal and tympanic regions was observed, similar to bats.
Convergent evolution of hearing and echolocation genes (prestin) was identified between Typhlomys and other echolocating mammals.

Conclusions:

Soft-furred tree mice possess the capability of echolocation.
This finding establishes a new mammalian lineage capable of echolocation.
The study highlights convergent evolution in the development of echolocation.