Feature

Are Young Hyenas Just Misunderstood?

Front Matter

Food & Nutrition

Detection Scheme Takes Lesson from Plants

La Nina Will Whip up U.S. Winter Weather

Neandertals Show Staying Power in Europe

Earth-Moon Model Backs General Relativity

Biomedicine

The Mental Butler Did It

Physics

Found: Primordial Water

Collagen Transplant Replaces Rabbit Artery