Gibraltar monkeys eat soil in junk food detox: study

A colony of macaques that gorge on snacks offered by tourists in the British territory of Gibraltar swallow soil to recover from their junk food binges, a study has found.

Believed to originate from North Africa, the roughly 230 primates are the main attraction in the British exclave of 30,000 people that borders southern Spain, according to the Gibraltar Ornithological and Natural History Society.

Signs dotted around Gibraltar remind visitors of a ban on feeding the macaques, with infringements punishable by fines of up to 4,000 pounds ($5,350).

But the rules are hard to enforce given the large numbers of daily visitors to “The Rock.”