6,697 results
- Animals
Each year painted lady butterflies cross the Sahara — and then go back again
Painted ladies migrate the farthest of any butterfly.
- Science & Society
Readers respond to pesticides, Hawking radiation and more
Readers had questions about pesticides, Hawking radiation and the intersection of science and the public.
- Chemistry
Why some Georgia O’Keeffe paintings have ‘art acne’
Tiny protrusions are from chemical reactions in the paint, say scientists who developed an imaging method that could help curators track the knobs.
- Tech
Here’s what robots could learn from fire ants
Fire ants’ secret to success is prioritizing efficiency over fairness. Robot teams could use that strategy to work more efficiently in tight, crowded quarters.
- Plants
Shutdown aside, Joshua trees live an odd life
Growing only in the U.S. Southwest, wild Joshua trees evolved a rare, fussy pollination scheme.
- Earth
Keeping global warming to 1.5 degrees C helps most species hold their ground
Holding global warming to 1.5 degrees Celsius by 2100 could help protect tens of thousands of insect, plant and vertebrate species.
- Animals
A new species of high-altitude hummingbird may already be in trouble
Researchers have discovered a new species of hummingbird high up in the Ecuadorian Andes.
- Life
How emus and ostriches lost the ability to fly
Changes in regulatory DNA, rather than mutations to genes themselves, grounded some birds, a study finds.
- Humans
Culture helps shape when babies learn to walk
The culture in which a baby is raised can accelerate or slow down the development of early motor skills. Does it matter?
- Life
1 million species are under threat. Here are 5 ways we speed up extinctions
One million of the world’s plant and animal species are now under threat of extinction, a new report finds.
- Paleontology
Colorful moth wings date back to the dinosaur era
Microscopic structures that scatter light to give color to the wings of modern butterflies and moths date back almost 200 million years.
- Health & Medicine
Delusions of skin infestation may not be so rare
Delusional infestation, an unwavering belief that one’s skin is overrun with creatures or objects, may not be as rare as previously thought, researchers say.
