Back to today’s briefing

Story perspectives

Distressed Monkeys in Shanghai Lab Spark Welfare Concerns

2/22/2025

28 3

Summary

Story summary

In a Shanghai laboratory during the late 2010s, eight macaque monkeys were born with strikingly unusual behaviors. These nocturnal creatures displayed high cortisol and fluctuating melatonin levels, leading to alarming signs of mental distress, such as fear of their caretakers and a tendency to isolate themselves. Their plight raises questions about the impact of their environment on their well-being.

1 of 1

Story summary

In a Shanghai laboratory during the late 2010s, eight macaque monkeys were born with strikingly unusual behaviors. These nocturnal creatures displayed high cortisol and fluctuating melatonin levels, leading to alarming signs of mental distress, such as fear of their caretakers and a tendency to isolate themselves. Their plight raises questions about the impact of their environment on their well-being.