Monkeys "pay" for images of female peers

Update your browser to view ScienceDirect correctly.

Check supported browsers

Your technical details and browser version:

• Request ID: 990f6d44191b7867-IAD
• IP: 46.202.198.233
• UTC time: 2025-10-19T10:00:09+00:00
• Browser: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.2214.115 Safari/537.36