Grund, Charlotte https://orcid.org/0000-0001-8993-5176
Badihi, Gal https://orcid.org/0000-0001-5025-906X
Graham, Kirsty E. https://orcid.org/0000-0002-7422-7676
Safryghin, Alexandra https://orcid.org/0000-0002-8019-5455
Hobaiter, Catherine https://orcid.org/0000-0002-3893-0524
Article History
Accepted: 3 February 2023
First Online: 15 March 2023
Declarations
:
: Ethical approval to collect the original video data used within this study was granted by the Animal Ethics and Welfare Committee of the University of St Andrews (reference: PS15842). All mountain gorilla and chimpanzee data were also collected under permission from the Uganda Wildlife Authority and the Ugandan National Council for Science and Technology.
: Not applicable.
: Not applicable.
: The authors declare no conflicts of interest.