
Magnetic Field May Be a Map for Migratory Birds
It's well known birds can use Earth's magnetic field as their compass, but they may also use magnetism as their map. Christopher Intagliata reports

Magnetic Field May Be a Map for Migratory Birds
It's well known birds can use Earth's magnetic field as their compass, but they may also use magnetism as their map. Christopher Intagliata reports

Wildlife Tourism Could Be "Domesticating" Wild Animals
Human tourism—no matter how well-intentioned—might desensitize wild animals to poachers and predators, affecting their odds of survival. Christopher Intagliata reports

Sitting Not the New Smoking for Fidgeters
Sitting for more than seven hours a day is linked to a 30 percent higher risk of death, but that association disappears among the in-place movers and shakers. Christopher Intagliata reports

Nonpolitical Tweets May Reveal Political Bias
Word selection among Twitter users who could be identified as likely members of one or the other political party showed specific usage patterns. Christopher Intagliata reports

California Mountain Snowpack Is Flaking Out
With the Sierra Nevada snowpack at historic lows, should policy makers focus on capturing future rain instead of relying on the snow bank? Christopher Intagliata reports

Snake Bites in Costa Rica Peak with El Niño Cycling
Researchers found that snakebites were two to three times as prevalent in the hottest and coldest years of the El Niño climate cycle. Christopher Intagliata reports

Sperm Whales Congregate in Click-Based Cliques
The whales appear to prefer the company of "like-minded" individuals, based on common vocal clicking behavior—an example of culture, researchers say. Christopher Intagliata reports

Self-Healing Spaceship Shielding Could Keep Astronauts Safer
A new lightweight material that heals itself when punctured could help spacecraft survive run-ins with debris. Christopher Intagliata reports

Road Noise Takes a Toll on Migrating Birds
Researchers built a "phantom road" through wilderness using tree-mounted speakers to play traffic sounds, and witnessed a decline in bird fitness and diversity. Christopher Intagliata reports

Sick Ants Seek Out Medicinal Food
Healthy ants wanted nothing to do with free-radical-rich foodstuff, but ants exposed to a pathogenic fungus sought it out, which upped their odds of survival. Christopher Intagliata reports

Seaweed Bodyguards Coral against Bullying Sea Stars
Crown-of-thorns sea stars are an "underwater swarm of locusts" that devour coral—unless the coral is protected by a layer of seaweed. Christopher Intagliata reports

Vomit Machine Models Cruise-Ship Virus Spread
Using a simulated vomiting device, scientists determined that projectile vomiting can aerosolize noroviruslike particles, allowing the infection to spread short distances through the air. Christopher Intagliata reports

Sunlight Activates Smog-Causing Chemicals in City Grime
The grime on city buildings and may actively contribute to urban air pollution. Christopher Intagliata reports

Methane-Eating Microbes May Mitigate Arctic Emissions
A newly discovered strain of bacteria found in Arctic permafrost harvests methane from the air—meaning it could help mitigate the effects of warming. Christopher Intagliata reports

Invertebrates Are Forgotten Victims of "Sixth Extinction"
Some 95 percent of catalogued species in one family of Hawaiian land snails could already be extinct, and similar rates of invertebrate extinction could be happening around the world. Christopher Intagliata reports

Nicotine-Chomping Bacteria Could Help Smokers Quit
Researchers isolated a bacterial enzyme that could break down nicotine before smokers get the buzz that keeps them coming back for more. Christopher Intagliata reports

Spicy Food Linked to Lower Risk of Death
In a study of nearly half a million volunteers in China, those who ate chilies just a couple times a week had a 10 percent lower risk of death. Christopher Intagliata reports

Forests Suck Up Less Carbon after Drought
Tree growth lags below normal for several years following droughts, a detail about carbon sequestration that climate models currently overlook. Christopher Intagliata reports

"Imperfect" Vaccines May Aid Survival of Ultrahot Viruses
Certain vaccines prevent sickness and death, but don't block transmission—meaning they may actually give some viral strains an extra shot at survival. Christopher Intagliata reports

Plankton Blooms Fuel Cloud Droplet Formation
The Southern Ocean is the cloudiest place on Earth, a condition caused in part by phytoplankton particles kicked up by sea spray. Christopher Intagliata reports

Male Black Widows Strive for Mate's Monogamy
During courtship, male black widow spiders snip and bundle up the female's web in their own silk, which discourages other suitors from stopping by. Christopher Intagliata reports

Rain and Irrigation Can Make Crops Temporary Bacteria Farms
Researchers suggest farmers should consider harvesting when fields are dry, to prevent dangerous bacteria blooms from contaminating food. Christopher Intagliata reports

Roman Builders May Have Copied Volcanic "Concrete"
The rock of the Campi Flegrei Caldera, west of Naples, Italy, has an intricate network of mineral fibers—just like the famed Roman concrete. Christopher Intagliata reports.

Noses Agree When Genes See Eye to Eye
We all perceive smells differently—and two people’s preferences may give clues to their degree of genetic similarity. Christopher Intagliata reports