Mysterious Stone in 15th-Century Painting Could Be a Prehistoric Tool
Jean Fouquet’s “Melun Diptych” is likely the earliest artistic representation of an Acheulean hand ax
Earth Is Entering ‘Uncharted Territory’ Because of Climate Change, New Report Warns
Researchers found that 20 of 35 “planetary vital signs” are at record extremes, and they call for rapid action
Wild Female Chimpanzees Go Through Menopause, Study Finds
Until now, menopause had not been documented in wild, non-human animals, except for a few species of toothed whales
Health Care Workers Are Burning Out, CDC Says
Depression, anxiety and harassment of health professionals have risen beyond crisis levels, per a new report from the agency
Roosters May Recognize Their Reflections in Mirrors, Study Suggests
The findings demonstrate self-recognition could be more common among animals than previously thought
Mars’ Core May Be Smaller Than Thought, Wrapped in a Sea of Molten Rock
Based on seismic waves from a meteorite impact, two teams of scientists suggest the Red Planet has another layer deep beneath its surface
Huge Cicada Broods Have Ripple Effects on Birds, Caterpillars and Trees
When Brood X emerged in 2021, scientists measured how the influx of billions of insects affected the ecosystem near Washington, D.C.
Biologists Find 13 Freeze-Dried Mouse Mummies Atop Andean Volcanoes
These cold, arid and oxygen-poor summits are akin to conditions on Mars, prompting questions about how the rodents got there—and how they survived
Rapid Melting of West Antarctic Ice Shelves Is ‘Unavoidable,’ Study Finds
Even under a best-case climate scenario, global sea levels will likely rise because of this accelerated melting, scientists say
This Worm-Like Amphibian Eats Its Mother’s Skin to Get Microbes
Caecilians are the only known amphibians to pass microbes from one generation to the next, according to a new study
Eating Red Meat Is Linked to Type 2 Diabetes Risk, New Study Finds
Reducing daily intake of beef, lamb and pork could reduce your risk of developing the disease, researchers say
The Moon Is 40 Million Years Older Than Thought, Lunar Rock Samples Suggest
A new analysis of crystals from the moon pushes its age back to just 110 million years after the solar system formed
Why Ten Billion Snow Crabs Disappeared Off the Coast of Alaska
The unprecedented die-off represents roughly 90 percent of the eastern Bering Sea population
Hoppy Beer Could Be Climate Change’s Next Victim
Warming temperatures and drier conditions in Europe could continue to lead to declines in hop yields and hop quality, a new study finds
Early Europeans Ate Seaweed for Thousands of Years
Researchers found biomarkers of seaweed and other aquatic plants in samples of dental plaque
Runestones Reveal the Secrets of a Powerful Queen in Viking-Age Denmark
An analysis of the carvings on four runestones sheds new light on Queen Thyra’s influence
Reduced Serotonin Levels Could Cause Long Covid Symptoms, Study Finds
Researchers identify a mechanism through which inflammation related to the virus leads to lower levels of the neurotransmitter
Genetically Modified Silkworms Can Produce Spider Silk That’s Stronger Than Kevlar
The sturdy, biodegradable fibers could one day be used for surgical sutures or armored vests
Neanderthals May Have Hunted Cave Lions
Researchers say well-preserved bones may be the earliest direct evidence of the hunting of large predators
What’s Really the Average Human Body Temperature?
Long thought to be 98.6 degrees Fahrenheit, the measurement is highly personal and varies depending on time of day, among other factors, new research finds
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