News
- Health & Medicine
Hold the Phone? Radiation from cell phones hurts rats’ brains
A single 2-hour exposure to the microwaves emitted by some cell phones kills brain cells in rats.
- Ecosystems
Lab ecosystems show signs of evolving
An ambitious test of group selection considers whether natural selection can act on whole ecosystems as evolutionary units.
- Paleontology
Was it sudden death for the Permian period?
The massive extinctions that came at the end of the Permian period could have occurred within a mere 8,000 years, which suggests a catastrophic cause for the die-offs.
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Possible Alzheimer’s vaccine seems safe
A vaccine intended to slow or prevent the devastation of Alzheimer's disease appears promising, according to preliminary tests in people.
