Spread of rare strain raises questions over surveillance of infectious diseases.
Drug treatment for HIV infection is effective in preventing its spread, but implementing this fully will require more resources, says leading NIH scientist.
Genome sequence gives clues to microbe's sticking power.
New species of nematode discovered more than a kilometre underground.
Timely discovery of new use for expensive drug put to the test.
Researchers have worked out how to reprogram cells from human skin into functioning nerve cells.
Hurdles to integrating a variable supply of renewable energy into power grids are lower than most experts think.
Digital scans suggest mammals have their ancestors to thank for their keen sense of smell.
Satellite mission to monitor ocean salinity may help solve climate questions.
Antarctic ozone layer bouncing back after the phase-out of chlorofluorocarbons.
UN panel foresees big growth in renewable energy, but policies will dictate just how big.
Fungi found in UK pond could be part of a previously undiscovered — and extremely diverse — phylum.
Wave of infections triggers investigation into biosafety practices.
Fracturing rock to extract natural gas boosts methane in nearby water wells.
Warming has already lowered yields of wheat and corn.
Appeals court decision bodes well for continued NIH support of controversial research.
Researchers home in on structures that help the brain avoid faulty recall.
Greenhouse gas found in high abundance but risk of mass release uncertain.
Sleep-deprived rats suggest sleep is not necessarily a whole-brain phenomenon.
April 26, 2011
Fire ant colonies form water-repellent rafts to escape floods.
What is the state of the Gulf of Mexico one year after the Deepwater Horizon blowout began?
Museum specimens reveal build-up of heavy metal in the Albatross.
Researchers call for extensive surveys to gauge ecological effects of Fukushima.
Latest data suggest a Chernobyl-like effort will be needed.
As a budget deadline looms, researchers fear setbacks and lost opportunities.
The more species a habitat holds, the faster pollutants are removed from the water.
Chilean Antarctic survey finds dramatic variety of organisms adapted to unusual conditions.