Acoustic Activity Recorder for Burrowing Animals

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Science  26 Apr 1963:
Vol. 140, Issue 3565, pp. 398
DOI: 10.1126/science.140.3565.398


The vibrations of animals digging in a dry or moist substratum may be picked up and recorded continuously by a microphone, amplifier, and recorder setup. The apparatus permits a large region, such as an activity cage, to be monitored without disturbance of the animals or special requirements for soil conditions.