A commercial fishing boat pulls in its net near Seattle. Strict federal fishing laws have cut back significantly on overfishing in the United States. S.Froebe/iStockphoto.com hide caption

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Researcher Amandine Eriksen arranges the hand bones of a mountain gorilla skeleton. Erin Marie Williams hide caption

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A recent study in the Journal of Food Science suggests that green beans, beets and garlic maintain their antioxidant levels even after most kinds of cooking. The antioxidant value in carrots actually increased after gentle cooking. istockphoto.com hide caption

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Charles Kibe, right, a volunteer who works with HIV/AIDS-infected people in the Korogocho slum in Nairobi, Kenya, attends a patient at a health clinic in December 2007. Simon Maina/AFP/Getty Images hide caption

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