SCIENCE-MONKEYS/
- Marta Serafinko, Reuters
- Updated
Macaques hold food while an infant sits between them at the Rock in the British overseas territory of Gibraltar, July 27, 2019.
Marta Serafinko, ReutersAs featured on
Researchers said the monkeys have been observed eating soil more frequently, a behavior they said may help the macaques avoid stomach upset from consuming human snacks.

