Stories by Kristin Leutwyler

Several studies shed light on where aggression comes from and how it can be controlled

Several studies have now shown that the popular drug causes permanent brain damage

Bioinformatics--a melding of molecular biology and math-- may reveal the "wet" circuitry behind the human genome

The smallest human chromosome has so few genes, scientists are rethinking estimates for the entire genome

New polymers repel germs, battle cancer and repair nerves

A new fossil is helping scientists clarify the slippery origins of modern serpents

Scientists take a crucial step toward creating new materials with zero resistance at room-temperature

Non-Hodgkin's lymphoma is two diseases in one, say researchers who identify the genes that cells express.

Part dinosaur, part bird? All wishful thinking. Remains dubbed Archaeoraptor liaoningensis are a hoax