News
- Health & Medicine
Less vitamin D and melatonin bad for multiple sclerosis
Vitamin D and melatonin play important roles in multiple sclerosis.
- Life
Humans adjust walking style for energy efficiency
Humans can adjust their steps to walk in a way that uses the least amount of energy.
- Anthropology
Fossils suggest new species from human genus
Undated South African cave fossils may reveal a new species in the human genus.
- Neuroscience
Misfolded proteins implicated in more brain diseases
Alzheimer’s, other disorders show similarity to Creutzfeldt-Jakob disease and other prion infections.
- Life
Small number of genes trigger embryo development
New views of early embryo development reveal differences between humans and mice.
- Oceans
Earth got first whiff of oxygen 3.2 billion years ago
Photosynthesis by early cyanobacteria pumped oxygen into Earth’s oceans 200 million years earlier than once thought, new geochemical analyses show.
- Environment
Molting seals shed mercury along with fur
Seals spew amassed mercury when they shed, creating hotbeds of pollution in otherwise pristine coastal environments.
- Materials Science
Graphene shows signs of superconductivity
Ultrathin sheets of carbon can conduct electrical current with no resistance at low temperatures.
- Environment
Latest BPA replacement seeps into people’s blood and urine
Replacements for BPA called BPS and BPSIP may raise health risks for cashiers.
- Astronomy
First known exoplanets have few counterparts
The first known exoplanets were discovered around pulsars — probably one of the least likely places to have been found, astronomers now say.
- Animals
Same math describes relationship between diverse predators and prey
From lions to plankton, predators have about the same relationship to the amount of prey, a big-scale ecology study predicts.
- Health & Medicine
How farm life can prevent allergies
Farm dust prevents allergies by turning on an anti-inflammatory enzyme in the cells lining mice’s lungs.
