Stories by Katherine Harmon

Less than a pretty face: Brain scans show how a disorder leads individuals to perceive themselves as ugly

Ask the Experts

Testosterone-Fueled Sociability

Rotting Fish Spoil Ideas about Early Life-Forms' Simplicity

New large-clawed Jurassic dinosaur sheds light on elusive lineage

Colorizing Dinosaurs: Feather Pigments Reveal Appearance of Extinct Animals

Running barefoot is better, researchers find

What the small-brained hobbit reveals about primate evolution

Homing In on Mammalian Echolocation

Sequencing Staph: New Genetic Analysis Tracks MRSA Mutations

Slime mold validates efficiency of Tokyo rail network

Common lung disease--even when asymptomatic--can decrease heart's performance

Sowing their seeds: Neolithic farmers spawned most European males

Monkey see, monkey calculate: How are primates' brains wired for math?

Are Infectious Diseases Now Really Haiti's Biggest Health Threat?

Breathtaking: Alligators breathe like birds, underscoring an ancient link--and possibly a survival strategy

Tumors and concealed weapons beware, ophthalmology is teaching us how to become better searchers

Haiti Earthquake Disaster Little Surprise to Some Seismologists

Could a genetic cholesterol control protect some people from dementia?

Elective cesarean sections are too risky, WHO study says

A genetic marker for aggressive prostate cancer emerges

Obesity is now just as much of a drag on health as smoking

Good mutations: Stalking evolution through genetic mutation in plants

AIDS Vaccine: Mixed Result, Possible Future