Renner, Elizabeth
Price, Elizabeth E.
Subiaul, Francys
Funding for this research was provided by:
National Science Foundation (CAREER BCS-0748717)
Article History
Received: 9 December 2014
Revised: 4 August 2015
Accepted: 4 August 2015
First Online: 23 August 2015
Compliance with ethical standards
: The portion of the research involving human children was approved by the George Washington University Institutional Review Board. All procedures performed in studies involving human participants were in accordance with the ethical standards of the IRB and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The portion of the research involving orangutans was approved by the George Washington University IACUC and Smithsonian Institution ACUC. All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. All procedures performed in studies involving animals were in accordance with the ethical standards of the institution at which the studies were conducted.
: The authors declare that they have no conflict of interest.