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Model for Madness: Engineered mice have schizophrenia-like symptoms
Scientists have genetically altered mice so that they mimic the deficits in short-term memory and attention of schizophrenic patients.
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AnimalsKiller Flatworm: New species hunts with puffer fish toxin
A newly described marine flatworm from Guam hunts with the same toxin that a puffer fish uses. With video.
By Susan Milius -
Health & MedicineNot So Sweet: Cancers in rats that consumed aspartame
A large, new study in rats suggests that the artificial sweetener aspartame may be a carcinogen, but critics question the finding's validity.
By Ben Harder -
AstronomyRadio Daze: Staccato pulses suggest a new stellar class
Astronomers have discovered what may be a new class of star that emits bursts of radio waves for 2 to 30 milliseconds before falling silent for minutes to hours.