Monkeys learn to swallow soil so they can 'keep eating junk food stolen from tourists'
- Posted on April 22, 2026
- By The Daily Star
- 1 Views
- 1 min read
Monkeys learn to swallow soil so they can 'keep eating junk food stolen from tourists'

Macaques living on Gibraltar know that swallowing soil can stop upset stomachs caused by eating sweet and salty snacks from holidaymakers, a Cambridge University study found