News
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Genes discovered for sensing carbon dioxide
Researchers have tracked down a pair of genes that, together, seem responsible for some insects' ability to sense carbon dioxide.
- Humans
Congress upgrades fisheries protection
Congress has reauthorized and strengthened a 30-year-old federal law governing fishing and ocean management.
- Agriculture
Big footprints
Livestock production carries surprisingly high, and largely hidden, environmental costs.
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Stem cells float in amniotic fluid
Scientists have discovered a new type of stem cell in the fluid that bathes fetuses in the womb.
- Health & Medicine
Putting the kibosh on black cohosh
The herbal supplement black cohosh is no more effective than a placebo in reducing the number of daily hot flashes in menopausal women.
