News
- Health & Medicine
See How They See: Immature cells boost vision in night-blind mice
Transplanted retinal cells can restore some vision in mice with degenerative eye disease.
-
Sick and Tired: Tracking paths to chronic fatigue
Stressful experiences and a genetic predisposition toward emotional turmoil contribute to some cases of chronic fatigue syndrome.
- Earth
Not So Clean: Service industries emit greenhouse gases too
Service industries such as the retail trade are creating just as much planet-warming carbon dioxide as the manufacture and operation of motor vehicles do.
- Health & Medicine
Malaria Reversal: Drug regains potency in African nation
An inexpensive drug that had lost much of its punch against malaria over the past 20 years is showing signs of regaining its strength in the African nation of Malawi.
- Paleontology
Early tetrapod likely ate on shore
The skull structure of Acanthostega, a semiaquatic creature that lived about 365 million years ago, suggests that the animal fed on shore or in the shallows, not in deep water.
- Paleontology
Society sans frills
The discovery of the fossils of several young dinosaurs in one small space suggests that the members of one dinosaur group evolved complex social behaviors millions of years earlier than previously suspected.
- Paleontology
DNA analysis reveals extinct type of wolf
New genetic analyses of the remains of gray wolves found in Alaska indicate that a distinct subpopulation of that species disappeared at the end of the last ice age, possibly because of its dietary habits.
- Paleontology
Rodents tell a geologic tale
The sudden appearance of many new species of rodents in Chile about 18 million years ago may have marked the rise of the southern Andes.
-
Dementia warning
A long-term study of people ages 65 and older in England and Wales indicates that the prevalence of brain disorders of memory and thinking, including Alzheimer's disease, increases sharply in aging populations.
- Health & Medicine
Curry may counter cognitive decline
A chemical found in turmeric may prevent cognitive impairment.
- Health & Medicine
Abated Breath: Serotonin problems may contribute to SIDS
Babies who die of sudden infant death syndrome show abnormalities in the regulation of the chemical serotonin in their brains.
- Astronomy
Rejuvenating Observatory: Green light given for space telescope repairs
NASA this week gave the go-ahead for a shuttle crew to refurbish the Hubble Space Telescope and to install new detectors that would vastly improve its capabilities.
