Bray, Joel http://orcid.org/0000-0001-8417-7492
Gilby, Ian C.
Funding for this research was provided by:
Jane Goodall Institute
National Institute of Health (R01-AI058715)
Harris Steel
McKnight Foundation
Windibrow Foundation
Leakey Foundation
Carnegie Corporation
University of Minnesota
Duke University
National Science Foundation (DBS-9021946, SBR-9319909, BCS-0452315, IOS-1052693, IIS-0431141, BCS-0648481, IOS-1457260)
Article History
Received: 16 April 2020
Revised: 12 August 2020
Accepted: 14 August 2020
First Online: 29 August 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Chimpanzees have been observed at Gombe National Park since 1960. The study followed U.S. and Tanzanian laws and was approved by the Tanzania Wildlife Research Institute, Tanzania National Parks, and the Tanzania Commission for Science and Technology. All animal protocols followed the guidelines for the treatment of animals recommended by the ASAB/ABS (CitationRef removed).
: Not applicable.
: Not applicable.
: Model code is available online (ExternalRef removed).