Areas that researchers have declared the most polluted in the world are typically little known even in their own countries. Yet they in total afflict more than 10 million people, experts reported today.

A new study suggests the joints in your ankles and feet act like springs to help you keep your balance on uneven terrain.

New research bolsters idea that marijuana might contain compounds that slow memory loss in Alzheimer's patients.

In his 1912 story A Princess of Mars, early science fiction author Edgar Rice Burroughs dreamed about automated restaurants. Now fiction is becoming fact.

Bones unearthed on the Philippine island of Cebu reveal a miniature water buffalo that lived during tens of thousands of years ago, a finding that could weigh heavily on the debate about the dwarf hominid species discovered in 2003.

Here is a most common snail of forests and gardens in western North America ... the "robust lancetooth," named after a characteristic of its radula or the rasplike mouth structure found in most mollusks.