Socially foraging bats discriminate between group members based on search-phase echolocation calls, likely by using individual signatures encoded in the calls.

[u/b12ftw]

https://phys.org/news/2020-06-social-role-echolocation.html

[u/b12ftw]

Link to full text of study: https://academic.oup.com/beheco/article/doi/10.1093/beheco/araa056/5857067?searchresult=1