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Tornadoes, Hail, Damaging Winds Saturday: Oklahoma to Dakotas
Map: Current Severe Weather Warnings
Teenager Designs Safer Nuclear Power Plants
Mount Saint Helens has erupted several times since the destructive 1980 eruption, and likely will again in the future.
A new species of dinosaur-era reptile is rewriting the books on the evolution of so-called sea monsters, a new study claims.