LAST WEEK'S column provided a recipe for testing your garden soil's texture and discussed the management of sandy soils. This week, I'll focus on the management of clay, silt and loam soils and ...

Several species of parrots in Southeastern Peru regularly gather at a cliff face in the Amazon basin to eat clay. So do other animals, including... The parrots of Southeastern Peru crave an earthy ...

Wild chimpanzees in the forests of Uganda are increasingly eating clay to supplement the minerals in their diet, according to a long-term international study . The article describes how the ...

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 ...