News
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AnimalsFemale owls: First to advertise good genes
Swiss researchers find the first case of a female flashing ornaments that advertise her gene quality to choosy males.
By Susan Milius -
PhysicsGravity gets measured to greater certainty
Important but imprecisely measured, the gravitational constant, G, is given its most exact experimental value yet, while a pioneering investigation into gravity finds that extra dimensions, if they do exist, occupy spaces of less than a couple tenths of a millimeter.
By Peter Weiss -
Another chromosome down, more to go
Scientists from six countries have completed the sequence of human chromosome 21.
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Health & MedicineSweet news about ginseng
When taken before or with meals, ginseng appears to help people with diabetes control the normal rise in blood sugar that accompanies eating.