Los macacos ingieren terrones de arena para ayudar a su sistema digestivo a lidiar con los azúcares, grasas y lácteos de las chucherías humanas

Gibraltar’s famous macaques have started eating soil, a behaviour linked to their access to tourist snacks, according to a new study.

Macaques have learned to eat soil to avert gut irritation caused by salty and sugary snacks, researchers believe