Macaques ingest clumps of clay to help their digestive system process the sugars, fats, and dairy products from human snacks ...

Gibraltar’s macaques have been observed engaging in geophagy, the consumption of soil and clay, in an apparent attempt to quell their nausea from eating fatty and salty foods offered by tourists ...

On the limestone cliffs of Gibraltar, Europe’s free-ranging monkeys have developed a taste for the finer things in a tourist’s backpack. From salted peanuts and chocolate bars to M&M’s and melting ice ...

Macaques living near the Rock of Gibraltar eat a lot of tourists' food. A new study suggests the monkeys have learned to eat dirt to settle their stomachs.

Monkeys in Gibraltar have learned to eat soil to settle their stomachs from all the junk food they consume, research suggests.

Monkeys in Gibraltar are eating soil to soothe their stomachs because their diets now consist mainly of junk food left behind by tourists, according to a new study. Barbary macaques, the only wild ...

We've all been there. You eat a Big Mac or an ice cream cone, and your stomach disagrees with some of the choices you've made. The same can be true for animals. A new study finds one group of junk ...