Poverty and tradition drive some Haitians to eat cakes of clay, salt, and butter. Nutritionists fight local beliefs about the dish's merits.

British red squirrels are thriving on an island off the southern coast of England, safe from a deadly poxvirus carried by the more common North American gray squirrel.

Salt mining in a Ugandan lake is a life-threatening occupation. The salt is literally eating away at the miners' skin.

The pressure on South African mining companies to dig deeper for remaining gold ore deposits may further endanger miners in an industry where accidents are commonplace.

Floods in southeastern Mexico have left thousands in serious need of food and water. Authorities are worried about the possible spread of waterborne disease.

Mexico's leader called flooding in Tabasco state "one of the worst natural disasters in the history of the country." Officials now fear waterborne disease.

Self-cleaning toilets and a 14-year-old inventor are part of this annual summit in India to address sanitation problems for 2.6 billion people without toilets.

An antibiotic primarily used to treat pinkeye in humans cures chytridiomycosis, which has been wiping out amphibians worldwide, scientists report.

From AIDS to cancer to suicide, see which causes of death hit hardest in which parts of the world using a unique new series of maps.

Genetically engineered mice furnished with fluorescent proteins are providing the most detailed pictures yet of the brain's intricate circuitry.

The Nature Conservancy has blasted through 1950s-era levees in the Williamson River Delta in southern Oregon to save the wetlands and endangered fish species.

A bat-loving English couple has turned a spare bedroom into a bat hospital. The United Kingdom protects all of its 17 bat species.

HIV came straight to Haiti from Africa, then traveled to the United States and much of the rest of the world, suggests a new study into the mysterious history of AIDS.

An Indian state is implanting microchips under the skin of all its captive elephants as part of a project to register and keep track of the animals.

Young lab mice put on a vibrating platform everyday developed less fat—suggesting that these "good vibrations" may prevent fat cells from forming.