Bacterial Communication Identified
A decade after microbiologists began to suspect that many groups of bacteria can communicate — by releasing and detecting chemical…
Chips Themselves Go Wireless
The silicon chip may soon join the growing list of devices to go wireless, a development that could speed computers…
Trees May Contribute To Ozone Problem
Trees may not actually commit suicide, but certain species do produce pollutants that hamper their own growth while contributing to…
Adult Stem Cell Breakthrough
Researchers at the University of Minnesota Stem Cell Institute (SCI) have found the first evidence that adult bone marrow-derived cells…
Human Noise Wrecks Whales’ Sex Lives
The very-low-frequency courtship songs of fin whales and blue whales are the most powerful and ubiquitous biological sounds in the…
Newfound Planetary System Looks Like Home
After 15 years of observation and a lot of patience, the world’s premier planet-hunting team has found a planetary system…
Single-Atom Transistor Created
A long-sought goal of scientists has been to shrink the transistor, the basic building block of electronic circuits, to smaller…
Greenhouse Effect Is “Green”
Last year, scientists discovered that the northern hemisphere was becoming increasingly greener due to increased warming. Furthering that study, researchers…
Climate Change To Be Major Cause Of Ozone Loss
While industrial products like chlorofluorocarbons are largely responsible for current ozone depletion, a NASA study finds that by the 2030s…
Rogue Brain Signal Behind Obsessive-Compulsive Disorder
Scientists have discovered a brain signal that, like an encouraging bystander at a marathon, urges us keep working at a…
New Amino Acid Discovered
Two teams of researchers from Ohio State University reported today that they had identified the 22nd genetically encoded amino acid,…
Link Between Creative Genius And Mental Illness Established
For decades, scientists have known that eminently creative individuals have a much higher rate of manic depression, or bipolar disorder,…
Age Of Dinosaurs Began With Comet Impact
An asteroid or comet impact on Earth may have paved the way for the sudden rise of the great Jurassic…
Fresh Doubts On Human Cloning
Scientists at the University of Pennsylvania have found that the activity of a single gene is a powerful predictor of…
No Limit To Life Expectancy
The lifespans of people in developed nations are increasing at a remarkably constant rate, suggesting that there is no natural…
Measles Supresses HIV Replication
Replication of human immunodeficiency virus (HIV) is briefly suppressed during acute measles, according to researchers at the Johns Hopkins Bloomberg…
Global Extinction Crisis Poorly Understood
Singling out vulnerable species for protection has been an important conservation tool for nearly 30 years. Now two prominent ecologists…
Placebo As Effective As Prozac
Depressed patients who got better after taking a placebo for six weeks showed brain changes that were remarkably similar to…
Earth Has Fewer Species Than Expected
An eight-year National Science Foundation-funded study of New Guinean rainforest plants and the insects that feed on them has yielded…
Icebergs’ Impact On Antarctic Marine Life Devastating
For the first time, satellite imagery has allowed scientists to observe how icebergs in a remote corner of Antarctica can…
New Insight Into Basic Mechanism Of Evolution
The basic cellular machinery that generates the genetic diversity central to evolution does not operate quite the way scientists have…
Weed Killer Disrupts Frogs’ Sexual Development
The nation’s top-selling weed killer, atrazine, disrupts the sexual development of frogs at concentrations 30 times lower than levels allowed…
Tropical Rivers Produce More CO2 Than Previously Thought
U.S. and Brazilian researchers say the amount of carbon dioxide coming off streams, rivers and flooded areas of the world’s…
Prescription Drug Pollution May Harm Environment
The millions of doses of prescription drugs that Americans swallow annually to combat cancer, pain, depression and other ailments do…
Alcohol And Nicotine A Pleasurable Combination
It’s no secret that smokers often drink, and drinkers often smoke. Addiction scientists believe that alcohol consumption may contribute to…
Asymmetrical Birds At Risk Of Extinction
If conservationists could foretell the future, they’d want to know which animal populations are about to decline. New research shows…
Antarctica Key To Sudden Sea Level Rise
A massive and unusually abrupt rise in sea level about 14,200 years ago was caused by the partial collapse of…
Antarctica On The Move
Until the mid-1990s some 1.2 million square miles of central Antarctica appeared on maps as blank white space because satellites…
Breast Feeding Best For A Higher IQ
Full-term infants who are born small score an average of 11 points higher on IQ tests if they are exclusively…
Allergies May Rise Significantly Over Next 50 Years
Rising carbon dioxide levels associated with global warming could lead to an increase in the incidence of allergies to ragweed…