# Pit of despair

> device used by Harry Harlow to study rhesus monkeys

**Wikidata**: [Q7198576](https://www.wikidata.org/wiki/Q7198576)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Pit_of_despair)  
**Source**: https://4ort.xyz/entity/pit-of-despair