AI Insight
A population of Barbary macaques (Macaca sylvanus) in Gibraltar has been observed consuming soil, a behavior known as geophagy, following ingestion of processed foods provided by tourists. Researchers suggest this behavior may serve a detoxifying or digestive function, potentially helping the animals neutralize the negative nutritional effects of high-sugar, high-fat snacks that deviate significantly from their natural diet. The study adds to a growing body of evidence that geophagy in primates can be an adaptive behavioral response to dietary disruption.
Why it matters
This finding highlights the physiological consequences of human-wildlife interaction, particularly tourist feeding practices, and could inform wildlife management policies in areas where animals and tourists regularly interact. It also offers broader insights into self-medicating behaviors in non-human primates.
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.
Source: Gibraltar monkeys eat soil in junk food detox, study finds