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Batty Image: Alabama's Bat Hibernation CaveAlabama's Fern Cave National Wildlife Refuge home to some 1 million gray bats.
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Bizarre Geology: The Hoodoos of Bryce CanyonUtah national park is home to some out-of-this-world geology.
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Image: Snow Falls on Glacier National ParkFall has definitely arrived in Montana.
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Peep the Fall Foliage at Montana's Chief MountainSlightly dry areas of the country could create a pleasant surprise for leaf lovers.
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7 Most Mars-like Places on EarthWith NASA's Curiosity Rover set to hit the Red Planet on Aug. 5, here are some of the most Mars-like places on Earth where scientists have prepped for Mars missions past and future.
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After Nearly Dying, Mountaineer Returns to EverestPh.D. candidate to live among Sherpa mountain guides and study them.
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Tornado Season's Early Start May Predict Ominous YearAtmospheric patterns in place for an above normal season.
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'Spring Break' From Floods Is ForecastBut drought now more widespread.
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Giant Stinking Corpse Flower Set to BloomSniff this rare flower at your own risk.
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Huge Hail Hammers HawaiiWaterspout also reported as nasty storms hit Hawaii.
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Japan Quake Aids Calif.'s Future Warning SystemData from Japan quake helping refine warning algorithms.
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Top 10 Most Visited National ParksThe national park bucket list.
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Last Resident of Hawaii Subdivision Evicted by Lava30-year resident's home burned down.
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Zap! Amazing Lightning Photo CapturedIntense lightning storm over an island in Greece.
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Can Tornadoes Hit the Same Place Twice?No weather myth: Tornadoes can strike twice.
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Entire Month's Worth of Tornadoes Strike in One Day81 reported tornadoes overnight. March averages 87 twisters for entire month.
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Leap Day Tornado-Producing Storms Seen From SpaceNASA satellites captured the storms roaring across the Midwest.
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Deadly Leap Day Tornado Was Rare and Powerful EF-4Such strong storms are not common for February.
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A Free Hike: National Forests To Drop FeesMany trailheads, daily recreation sites and general forest areas soon to be free.
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Everest to the Indian Ocean: Duo Named Adventurers of The YearMeet the other adventurers of the year for 2012.
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Nebraska Hit By First-Ever February TornadoSee a video of the twister, which struck a remote area of the state.
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5 Percent of Tsunami Debris Could Reach US CoastDebris expected to reach U.S. shores by 2013.
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Watch Out for Deadly Nighttime Twisters in WinterNocturnal twisters are more than twice as likely to kill.
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What Is A Saskatchewan Screamer?Not a wrestling name, but a fast-moving storm from Canada.
