News
- Earth
Protecting Baby: Calcium in pregnancy reduces lead exposure
By taking calcium supplements during pregnancy, a mother can significantly reduce the lead exposure of her fetus.
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Glowing Trio under the Sea: Nitrogen fixer joins algae inside coral
A coral that fluoresces orange appears to be the first ever found to contain a symbiotic microbe that converts nitrogen into a biologically useful form.
- Paleontology
Growth Spurt: Teenage tyrannosaurs packed on the pounds
Detailed analyses of tyrannosaur fossils suggest that the creatures experienced an extended growth spurt during adolescence.
- Plants
Lowering lilies on the tree of life
Water lilies may belong on the lowest branch of the family tree of flowering plants, along with a shrub called Amborella.
- Earth
Infectious stowaways
A new study finds that ballast water can move huge quantities of cholera germs and other microbes between ports around the globe.
- Earth
Problems with eradicating polio
The oral vaccine's live but attenuated virus may in rare cases revert to the disease-causing form, which can then turn up in natural waters even in regions now certified free of the wild-type virus.
- Health & Medicine
Cancer cells on the move
A new study suggests how a gene recently linked to liver, skin, and pancreatic cancer also causes an often-deadly form of breast cancer.
- Health & Medicine
Boldly into the breech controversy
Addressing a long-simmering controversy, a large new study has shown that in pregnancies where the baby has positioned itself to emerge feet or buttocks first, the delivery safest for the mother and child is a planned cesarean section rather than a vaginal birth.
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Blame the brain for lack of rhythm
Some people are born with dysmusia, a condition marked by difficulty learning to play music or recognizing melodies.
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Perfect pitch common among the blind
Blind musicians are more likely to have perfect pitch than are sighted people.
- Health & Medicine
A vaccine to help ex-smokers
By generating antibodies that neutralize nicotine, a vaccine could keep ex-smokers from getting the nicotine high that drives many of them back to their bad habit.
- Health & Medicine
Caffeine may ward off Parkinson’s
Scientists may have found an explanation for why coffee drinking prevents Parkinson's disease.
