1918 Flu - Nov. 2006
A virus that killed up to 50 million people is brought back to life to decipher its deadliness.
Aging - Jan. 2007
Will research into "longevity genes" help us live longer and healthier lives?
Anthrax Investigation - June 2009
The new science of microbial forensics reveals the source of the anthrax used in the deadly attacks of 2001.
Artificial Life - Oct. 2005
Are scientists on the verge of making living things from little more than dust?
Autism Genes - July 2009
Researchers have begun to zero in on genes that might be responsible for autism.
Bird Brains - July 2008
Clues to the origins of human language are turning up in the brains of birds.
Brain Trauma - July 2008
Even so-called "mild" head injuries turn out to be anything but.
Epigenetics - July 2007
Our lifestyles and environment can change the way our genes are expressed, leading even identical twins to become distinct as they age.
Fish Surgery - Oct. 2005
Veterinary medicine has caught up with Americans' love for their number one choice of pet: the fish.
Frozen Frogs - Apr. 2005
The common wood frog freezes solid every winter and then, come spring, defrosts and mates.
Killer Microbe - July 2008
A relatively benign bug becomes a highly lethal pathogen, known to U.S. soldiers as Iraqibacter.
Lab Meat? - Jan. 2006
Scientists can grow edible meat in culture from a few animal cells. Bon appétit?
Leeches - July 2008
A century after falling out of favor among doctors, medicinal leeches are back in hospitals, sucking away on patients' wounds.
Marathon Mouse - July 2009
With an "exercise pill," researchers turn couch-potato rodents into champion runners.
Of Mice and Memory - June 2008
Mice placed in enriched environments can recover lost memories, giving hope to those who study Alzheimer's.
Mirror Neurons - Jan. 2005
A recently discovered system in the brain may help explain why we humans can get so worked up watching other people.
Obesity - Oct. 2006
Examine the biology behind the compulsion to eat.
Pandemic Flu - Jan. 2006
Will the virus that causes bird flu develop the ability to move from person to person?
Personal DNA Testing - July 2008
Genetic testing to assess risk factors for a handful of serious illnesses is now commercially available. But is it a good idea?
Profile: Bonnie Bassler - Jan. 2007
Her insight into how bacteria "talk" has launched a revolution in biological and medical research.
Profile: Judah Folkman - July 2008
Once scorned for his ideas about how cancer grows, the late Judah Folkman is now hailed as a visionary.
Profile: Tyler Curiel - Jan. 2006
In the midst of Hurricane Katrina a cancer researcher risks everything to save a medical treasure.
Profile: Naomi Halas - Apr. 2005
Naomi Halas is a pioneering nanotechnologist bent on seeing practical applications for her work—and soon.
Profile: Erich Jarvis - Oct. 2005
The work of neuroscientist Erich Jarvis demonstrates the power of open-mindedness in the lab.
Profile: Alfredo Quiñones-Hinojosa - July 2008
He jumped the fence from Mexico to work as a farmhand and ended up a leading brain surgeon.
Profile: Pardis Sabeti - July 2008
By night she's a rocker. By day, she's a Harvard geneticist tracking the evolution of the human genome.
Profile: Edith Widder - July 2008
Meet a marine biologist and explorer who has engineered new ways to spy on deep-sea creatures.
RNAi - July 2005
A wayward petunia leads to the discovery of modest little molecules with enormous medical promise.
The Science of Picky Eaters - July 2009
Don't like broccoli? Your DNA may explain why.
Sleep - July 2007
Why do we need sleep? Part of the answer may be to strengthen memories.
Stem Cells - Apr. 2005
What are they, and how do we find a balance between hope for cures and respect for life?
Stem Cells Breakthrough - July 2008
Three separate teams overcome a biomedical hurdle—creating stem cells without the use of human embryos.
Stem Cells Update - Jan. 2006
A new technique for creating stem cells may ease ethical concerns.