Feature

Shock Wave Revives Fading Supernova Ring

Behavior

Food & Nutrition

Defusing the Fuss over Fossils

Back Matter

Correction: Sacred Secrets of the Caves

Colon Cancer Treatment Shows Promise

Crystal Clear

Hermaphrodites Duel for Manhood

Front Matter

As Globe Warms, Hurricanes May Speed Up

Correction: EMFs’ Biological Influences