Most people sweep dirt into the trash, but a grassroots social media trend suggests sprinkling it on your lunch as a healthy treat. Health experts, however, say the risks of injury and disease far ...

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 ...

You may have seen someone chewing chalk, eating clay, or even craving ash, and wondered why they'd engage in such behaviour. While these actions may seem strange or unsettling, for some individuals, ...