News
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When opposites don’t attract
The quirks of two kinds of European corn borers are giving researchers a way to study how a single species might split in two.
By Susan Milius -
Planetary ScienceFar-out science
New measurements show that the planetoid Sedna spins more rapidly than earlier observations had suggested.
By Ron Cowen -
Health & MedicineWhen the stomach gets low on acid
A study in mice shows that a shortage of stomach acid can lead to cancer, apparently as a result of bacterial overgrowth and inflammation.
By Nathan Seppa -
Many cyanobacteria make a neurotoxin
A brain-damaging toxin, once believed to come only from a group of tropical plants and their live-in microbes, turns out to be much more widespread.