New Device Can Detect Covid in the Air Within Five Minutes
Researchers report the technology is 77 to 83 percent accurate in finding any of the coronavirus variants in a room
13-Foot Endangered Sawfish Spotted in Northern Florida Hints at a ‘Slow Recovery’
Scientists tagged the rare animal farther north than any such fish in decades, suggesting the species is returning to areas it once lived
Having a Companion Could Help Rattlesnakes Stay Calm
During a stressful event, snakes experienced a smaller spike in heart rate when they were in the presence of another snake, according to a new study
Crows and Magpies Snatch Anti-Bird Spikes to Build Their Nests
Birds in Europe are prying up the metal barbs, meant to repel them from roosting on buildings, and using the devices as nesting material
FDA Approves First Over-the-Counter Birth Control Pill
Experts say the decision will increase access to safe and effective contraceptives for millions of Americans
Humans May Have Arrived in the Americas Earlier Than Previously Thought
Researchers say that humans coexisted with giant sloths in Brazil some 25,0000 years ago
Climate Change Is Shifting the Color of Earth’s Oceans
More than half of our oceans have taken on a greener hue in the past 20 years, a trend that cannot be fully explained by natural variation, per a new study
Saber-Toothed Tigers and Dire Wolves Suffered From Bone Disease
Some fossils preserved in the La Brea tar pits showed signs of an inherited joint condition that may have proliferated as the animals neared extinction
Scientists Reveal Why Asp Caterpillar Stings Are So Excruciatingly Painful
A toxin in the insect’s venom, which can punch a hole in cell walls, could inspire new drug-delivery methods in humans
This Canadian Lake Could Mark the Start of an Epoch Altered By Humans
With evidence of fossil fuels, nuclear weapons and a warming climate buried in its sediment, Crawford Lake represents the Anthropocene, scientists say
This Mirror-Like Exoplanet Is the Most Reflective Ever Discovered
The ultra-hot world is wreathed in metallic clouds that prevent the planet from evaporating and keep its atmosphere intact
A Surfboard-Snatching Sea Otter Is Vexing Wildlife Officials in California
While the animal’s antics may look cute, the dangerous behavior could bring harm to humans or force authorities to euthanize the endangered mammal
We Can Hear Silence Like a Sound, Scientists Say
In a study, participants were tricked by “silence illusions” in the same way that illusions with sound fool the brain
Bloodsucking Sea Lampreys Made a Comeback in the Great Lakes During Covid
Travel restrictions hindered population control of the invasive parasites, which feed on fish like trout, whitefish, perch and sturgeon
California’s Long-Dry Tulare Lake Has Returned
Record-breaking snowpack and storms have flooded hundreds of acres of agricultural land in the state’s San Joaquin Valley
Tourists Spot ‘Incredibly Rare’ Whales Off California Coast
Cuvier’s beaked whales can hold their breath for hours and don’t spend much time at the surface, making them mysterious—and a treat to see
Aurora Borealis Could Dazzle the Northern U.S. This Week
The current forecast from the University of Alaska, Fairbanks, says the glowing display could be visible as far as Madison, Wisconsin
FDA Fully Approves First Drug Meant to Slow Alzheimer’s Disease
The drug showed promise in an 18-month clinical trial, but some experts have expressed concerns about its safety and cost
New Extinct Species of ‘Ridiculously Cute,’ Tiny Penguins Discovered in New Zealand
Scientists identified the diminutive birds after finding two of their fossilized skulls
The ‘Ivory Man’—a Powerful Leader Buried in a Lavish Tomb 5,000 Years Ago—Was Actually a Woman
Researchers in Spain had previously assumed that the grave belonged to a high-status young man
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