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PaleontologyJust for Frills?
The more that paleontologists scrutinize some dinosaurs' plates, frills, and other anatomical oddities, the more they suspect that the rationale behind these features is simply the need to be recognizably different.
By Sid Perkins -
A Slumber Not So Sweet: Loss of brain cells that regulate breathing may cause death during sleep
Elderly people may die in their sleep because they gradually lose brain cells that control breathing.
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Health & MedicineNew Carrier: Common tick implicated in spread of fever
The brown dog tick is capable of spreading the bacterium that causes Rocky Mountain spotted fever.
By Nathan Seppa -
AstronomyThree’s Company: Asteroid 87 Sylvia and her two moons
Astronomers have for the first time discovered an asteroid with two moons, an indication that the rock is highly porous.