Feature

Geologists Ponder the Depth of Earthquakes

Genes Linked to Baldness, Missing Teeth

Bug Sprays May Bug You, Too: For a Day

Twisting Chemical Reactions to Form Knots

Nylon May Take X Rays into Digital Age

Evolution’s Fast Track toward Slow Flight

Missing Protein Helps Mice to Bone Up

Agriculture

Anthropology

Out of Arid Africa

Flaws of the Heart

Biology