Scientists have found that keratin, the protein in hair and skin, can repair and protect tooth enamel. The material forms a mineralized layer that halts decay and restores strength, outperforming ...
PESCADERO, Calif. (AP) — Every winter about 10,000 elephant seals make their way to California’s Año Nuevo State Park to fight, mate and give birth. The spectacle runs from mid-December through March, ...
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