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. 2023 Aug 3;17:1228478. doi: 10.3389/fnbeh.2023.1228478

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Copyright © 2023 Parsons, Stryjek, Fendt, Kiyokawa, Bebas and Blumstein.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Field FEP in natural conditions demonstrating an assay that eliminates all animal handling. Laboratory-style boxes used for a study on free-ranging rodents (Apodemus mice; A. agrarius and A. flavicollis). (A, B) Two wooden chambers deployed near mice's habitat. (C) The inside of the experimental chamber with floor covered with sand layer and chocolate cream as a bait. (D) Video-still showing yellow-necked mice (A. flavicollis) during social interaction inside one of the chambers. (E) Video still showing yellow-necked mice during social interaction near the entrance pipes.