News
- Health & Medicine
Athletes develop whey-better muscles
Dietary supplements coupling whey and creatine promote the development of bigger, stronger muscles in experienced body builders.
- Earth
Prenatal nicotine: A role in SIDS?
New data suggest why exposure to nicotine in the womb can put an infant at greater risk of sudden infant death syndrome.
- Health & Medicine
Little vessels react to magnetic switch
Magnets can act like vascular switches, increasing or decreasing blood flow to a region of the body.
- Earth
Traces of lead cause outsize harm
Minute amounts of lead in blood are worse for children than had been realized.
- Paleontology
Ancestors Go South
A group of new and previously excavated fossils in South Africa represents 4-million-year-old members of the human evolutionary family, according to an analysis of the sediment that covered the finds.
- Animals
Chicks open wide, ultraviolet mouths
The first analysis of what the mouths of begging birds look like in the ultraviolet spectrum reveals a dramatic display that birds can see but people can't.
- Animals
Fishy Paternity Defense: Bluegill dads: Not mine? Why bother?
Bluegill sunfish have provided an unusually tidy test of the much-discussed prediction that animal dads' diligence in child care depends on how certain they are that the offspring really are their own.
- Health & Medicine
Protein Pump: Experimental therapy fights Parkinson’s
Bathing surviving dopamine-making neurons with a natural protein that induces nerve-fiber growth reverses some of the symptoms in Parkinson's disease patients.
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Moving On: Now the human genome is really done
An international consortium of scientists announced that the deciphering of the human genetic code is now truly complete.
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Radiation Marks Chromosomes: Plutonium leaves genetic fingerprint
By examining specific types of long-lasting genetic rearrangements in blood cells, researchers have found a way to measure a person's past exposures to plutonium radiation.
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Neural Recall: Brain area may support fact and event memory
A brain structure called the hippocampus may crucially influence memory for both factual information and personally experienced events.
- Paleontology
Fertile Ground: Snippets of DNA persist in soil for millennia
Minuscule samples of sediment from New Zealand and Siberia have yielded bits of DNA from dozens of animals and plants, including the oldest DNA sequences yet found that can be traced to a specific organism.
