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 ...
We could never know the variety of lifestyles that humans led, as their preferences ranged from reliable to bizarre. This included a medical condition wherein people felt the craving to indulge in ...
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, ...
Dr. Sera Young is a faculty member in the Division of Nutritional Sciences at Cornell University and Reproductive Infectious Disease Fellow at UCSF. Her book is Craving Earth: Understanding Pica-- the ...