News
- Humans
Humans’ entry into Europe pushed earlier
Homo sapiens fossils from Italy and England point to an early arrival and a longer time living alongside Neandertals.
- Physics
The sound of screech
Auditory experts decipher the blood-curdling nature of fingernails on a chalkboard.
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- Life
Nearness key in microbe DNA swaps
Close quarters, like those inside the human body, are the most important factor in determining how often bacteria pick up one another’s genes.
- Health & Medicine
Brain gene activity changes through life
Studies track biochemical patterns from just after conception to old age.
- Humans
Facebook value overstated, study finds
Some estimates of the social networking site's worth appear to make impossible assumptions.
- Psychology
Digital bounty hunters unleashed
Internet technique shows promise as fast way to mobilize huge problem-solving teams.
- Life
Python’s heart-restoring elixir works in mice
A chemical brew used by snakes to build cardiac muscle could have medical applications.
- Space
Chronicles of Lutetia
The surprising composition and terrain of an asteroid may provide a variety of lessons about the solar system.
- Life
Giant dinosaurs may have migrated
Evidence in teeth suggests that sauropods sought greener pastures in dry North American summers.
- Health & Medicine
HPV vaccine recommended for boys
A federal panel expands the reach of shots as a separate new study shows the immunizations prevent precancerous anal lesions.
- Earth
A particulate threat to diabetics
As levels of soot and other fine air pollutants increased, so did blood pressure in patients whose disease was not well-controlled, a study finds.
