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September 16, 2010Biology
Do You Know When You're Wrong? Gray Matter Shows Introspective Ability Is Not Black and White: Differences in people's ability to gauge their own accuracy may be linked to having more volume--and more connections--in the prefrontal cortex; Katherine Harmon

September 28, 2010Health
Medical Research Images Frequently Reveal Unrelated Abnormalities in Study Subjects: Researchers lack a standard about when to disclose unanticipated findings to study participants and their doctors, raising ethical--and financial--dilemmas; Katherine Harmon

July 19, 2012Biology
Sequencing of Single Sperm Could Reveal New Infertility Causes: Sperm, decoded: a technological achievement parses the genomes of individual sperm cells, showing a new way to study reproductive medicine and hereditary cancer; Katherine Harmon

March 16, 2009Evolution
Dino Mites: A Diminutive Dinosaur in North America and a Rare Mass Death of Young Relatives in China: Two discoveries reveal new details about small birdlike dinosaurs; Katherine Harmon

September 1, 2009Health
Sore Throat on Aisle 4: Retail Clinics Match Quality of Doctor's Office: Nurse-only medical clinics in stores do just as well treating minor afflictions as visits to a full-fledged physician--and boast lower costs and no need for appointments; Katherine Harmon

October 9, 2009Evolution
Bye-Bye Birdie: New Look at Archaeopteryx Shows It Was More Dinosaur Than Bird: Microscopic analysis of Archaeopteryx fossils shows that the animal grew to maturity like a dinosaur rather than a modern bird; Katherine Harmon

November 16, 2009Health
Renewed Hope for an AIDS Vaccine: Despite questions, the Thailand trial spreads optimism; Katherine Harmon

December 3, 2009Health
Cancer Cells?: Brain Tumor Numbers Steady Despite Increased Mobile Phone Use: Amidst all the chatter about cancer, a new study finds that even as mobile phone use surged in northern Europe, the instance of brain tumors stayed about the same; Katherine Harmon

September 1, 2020Engineering
The First Subway in New York City Was a Cylindrical Car Pushed by Air: Scientific American editor Alfred Ely Beach revealed the secretly built wonder in 1870; Katherine Harmon Courage; Scientific American Volume 323, Issue 3; 10.1038/scientificamerican0920-49; Originally published as "Subway to Nowhere" in Scientific American Volume 323, Issue 3

October 12, 2011Public Health
How Black Death Kept Its Genes but Lost Its Killing Power: The newly sequenced genome of the plague-causing bacterium Yersinia pestis suggests human adaptations are what have kept this disease in check; Katherine Harmon

September 5, 2012Health
"Junk" DNA Holds Clues to Common Diseases: With the new annotation of the human genome, researchers are finding that most of the code between genes is controlling crucial functions for life and health; Katherine Harmon

August 6, 2009Health
Heart-Lung Machine May Not Be the Culprit in Post-Op "Pump Head" Syndrome: Bypass surgery patients who were on a heart-lung machine often find their brain function slipping for months or years afterward. A new study--and a simple lesson in the scientific method--points to cardiac disease itself as the underlying cause of "pump head"...; Katherine Harmon

March 5, 2009The Sciences
How Scientifically Accurate Is Watchmen?: A science consultant to the film explains some of its mysteries; Katherine Harmon

July 31, 2009The Sciences
Fungus Makes Zombie Ants Do All the Work: A tropical fungus has adapted to infect ants and force them to chomp, with surprising specificity, into perfectly located leaves before killing them and taking over their bodies; Katherine Harmon

August 24, 2009Health
Satellites Used to Predict Infectious Disease Outbreaks: From avian flu to cholera, infectious diseases may not be able to hide for long. Some researchers have their sights trained on predicting their every move with detailed satellite data; Katherine Harmon

September 10, 2009Mind & Brain
Earlier Model of Human Brain's Energy Usage Underestimated Its Efficiency: A long-held model of the brain's efficiency crumbles as researchers find that one function of mammals' brains consumes a lot less energy than previously assumed. Now, basic measurements of neural activity--from brain energy budgets to fMRI results--may have to be reassessed...; Katherine Harmon

January 1, 2010Health
AIDS Vaccine: Mixed Result, Possible Future: Despite questions, AIDS vaccine trial in Thailand spreads optimism; Katherine Harmon; January 2010

November 18, 2011Biology
New Clues for Improving Antibiotics for Tolerant Bacteria: Some of the ways bacteria protect themselves from antibiotics might be used against them to strengthen existing drugs; Katherine Harmon

January 31, 2010Evolution
Rotting Fish Spoil Ideas about Early Life-Forms' Simplicity: Squashed fossils of the first boneless vertebrates suggest basal creatures, but real-time decay patterns hint they might have been less primitive than we thought; Katherine Harmon

October 5, 2009Biology
Work on Telomeres Wins Nobel Prize in Physiology or Medicine for 3 U.S. Genetic Researchers [Update]: Elizabeth Blackburn, Carol Greider and Jack Szostak are recognized for research into telomeres--a key chromosome component--and the related enzyme telomerase; Katherine Harmon

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