The Petersburg Post

Wednesday, Apr 22nd, 2026 - Monkeys 'learn to eat soil to cope with junk food' Monkeys living on Gibraltar have learned that swallowing soil can quell upset stomachs caused by eating snacks offered or stolen from tourists, research suggests. Food such as chocolate bars, crisps and ice cream have negative digestive effects for the macaques but are "as delicious for them" as they are for humans, according to a Cambridge University study. Eating ...