News
- Earth
Continental clash cooled the climate
The collision between India and Asia set off events that caused long-term cooling in Earth’s climate, new research suggests.
- Health & Medicine
Lo-Cal bones hold up
One study of many recent investigations of how calorie restriction affects people shows that bone density does not necessarily suffer when a person loses weight quickly.
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- Life
FDA releases guidelines for genetically modified animals
Draft rules lay out policies for approving altered animals, including those used for food.
