The parrots of Southeastern Peru crave an earthy delicacy: dirt. At the Colorado clay lick, a cliff face rising above the Tambopata River in the western Amazon Basin, parrots — often hundreds at a ...

When I ask people if they have ever eaten soil before, they tend to give me a strange look. But geophagy – the deliberate ...

Here's the dirt: humans have been eating soil for two million years. It was never as weird as it sounds.