News
- Health & Medicine
A-beta on the brain
A study of 18 comatose patients finds that as brain activity increases, concentrations of a protein linked to Alzheimer’s disease also increase.
- Earth
Past gasps
Earth’s atmosphere during some past geological ages wasn’t as oxygen-deprived as previously thought, new experiments suggest.
- Life
Pollinator manipulators
Manipulating floral chemistry of a type of wild tobacco reveals push-and-pull strategy.
- Health & Medicine
Eye protection
A variant form of a gene called TLR3 offers some protection against the eye disease known as dry macular degeneration.
- Space
Clashing clusters
Two space telescopes capture the titanic collision of galaxy clusters in an image that shows dark matter separating from normal matter.
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Alarming sex appeal
Hens may find there’s just something about a guy that squawks at danger.
- Humans
Little big people
New fossil discoveries elevate ancient Pacific islanders, with disputed implications for controversial hobbit remains in Indonesia.
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- Health & Medicine
It’s all just roughage
People at risk of the colon disorder known as diverticulitis don’t need to avoid nuts, corn and popcorn, as previously recommended.
- Health & Medicine
Amniotic sac not so sacrosanct
Infections found in amniotic fluid may be more common than thought and may cause premature birth.
- Life
Live long and alter
Yeast cells fed a calorie-restricted diet live longer and have just as much energy as those fed a normal diet.
- Health & Medicine
Looking beyond insulin
Leptin gene therapy reverses many of the consequences of type 1 diabetes in mice and rats.
