113,179+ results
113,179+ results for:
- Paleontology
Ancient jellyfish suffered strange, sandy death
A fossil hints at the unusual series of events that led to an ancient jellyfish’s preservation and may offer clues to understanding odd sand deposits found elsewhere.
- Health & Medicine
Harmless bacterium edges out intestinal germ
Researchers treated C. difficile infections in mice with a closely related bacteria that blocks C. difficile growth.
- Health & Medicine
Daylight savings time tied to more exercise in children
Kids in Europe and Australia are slightly more active in longer-lit evenings, a new study shows.
- Life
Cells make their move with their ‘skeletons’
A close look at exactly what makes cells move could lead to better defenses against the spread of cancer and improved wound healing.
- Animals
Invasion drives quick evolution of lizard feet
After Florida islands were invaded by the Cuban anole, indigenous Carolina anoles quickly evolved feet better suited for climbing high.
- Archaeology
Ice Age hunter-gatherers lived at extreme altitudes
Two archaeological sites in the Andes indicate that hunter-gatherers inhabited extreme altitudes earlier than previously thought.
- Health & Medicine
Cocoa antioxidants boost the aging brain
High doses of cocoa flavanols can improve some types of brain function in older individuals, a new study shows.
- Science & Society
Is NIH policy the best way to sex equality in studies?
A new NIH policy will require females to be studied alongside males in preclinical studies. The mandate comes with both opportunities and challenges, and little funding.
- Genetics
Men who lose Y chromosome have high risk of cancer
Losing the Y chromosome in blood cells may bring on cancer and shorten men’s lives.
- Astronomy
Supersized sunspot is largest in decades
A colossal sunspot large enough to be seen with the naked eye now blemishes the nearside of the sun, covering an area wide enough to comfortably fit 10 Earths side by side.
- Plants
How female ferns make younger neighbors male
Precocious female ferns release a partly formed sexual-identity hormone, and nearby laggards finish it and go masculine.
- Genetics
Easter Islanders sailed to Americas, DNA suggests
Genetic ties among present-day populations point to sea crossings centuries before European contact with Easter Island.
