close
Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1967 Jan 27;155(3761):484-6.
doi: 10.1126/science.155.3761.484.

Training without reward: traditional training of pig-tailed macaques as coconut harvesters

M Bertrand

Training without reward: traditional training of pig-tailed macaques as coconut harvesters

M Bertrand. Science. .

Abstract

Macaca nemestrina, the pig-tailed macaque, is the only monkey regularly and extensively used for work. For centuries it has been trained in Southeast Asia to pick coconuts and other fruits. The training is based exclusively on punishment and avoidance of punishment.

PubMed Disclaimer

LinkOut - more resources