News
- Earth
Asteroid impact could have stirred the ocean
Model offers one explanation for sudden change in deep-ocean chemistry almost 2 billion years ago.
- Anthropology
Macaws bred far from tropics during pre-Columbian times
Colorful birds possibly raised for ceremonial and trade purposes long before Spanish arrival
- Life
Hormones give lantern sharks the glow
In a first, a study shows that bioluminescence can be controlled by slow-acting hormones, not rapid-fire nerve cells.
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Parents’ obesity may affect children’s brains; beetle with bifocals
More news from the Society for Neuroscience meeting.
- Space
Signature of antimatter detected in lightning
The signature of positrons has been found for the first time in gamma rays associated with storms on Earth.
- Health & Medicine
Bacteria flourish in favorite ecosystems on the human body
Study offers most comprehensive inventory yet of the human microbiome and a basis for understanding how those microbes affect health.
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Horse genome added to growing list of barnyard genetics projects
Equines join cucumbers and pigs as the most recent additions to the roster of organisms to have their complete DNA code spelled out. The new work on horses also helps answer a key question about chromosome structures called centromeres.
- Paleontology
Pollination in the pre-flower-power era
Scorpionflies with long-reaching mouthparts may have helped plants procreate long before blossoms evolved.
- Space
Gamma-ray sources guide astronomers to pulsars
Gamma-ray emissions are providing a guide to finding the compact, rapidly rotating remnants of massive stars known as pulsars.
- Humans
Newborn babies may cry in their mother tongues
Days after birth, French and German infants wail to the melodic structure of their languages.
- Space
Giant galaxy graveyard grows
The largest known galactic congregation is bigger than astronomers thought—and its inhabitants are all dead or dying.
- Health & Medicine
Vaccine may head off genital cancer in women
An experimental immunization can clear up premalignant growths caused by the human papillomavirus in some patients.
