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Concern Lingers on Success of Artificial ReefsAre artificial reefs good or bad for marine life?
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Plant Extinctions Reduce Ecosystem ProductivityHabitats with fewer plant species produce less oxygen, food, fiber overall.
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Water: A Precious, and Wasted, ResourceA new exhibit features all aspects of water, calls for conservation.
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Why Beasts Stick TogetherSocial cliques among wild animals helps to keep populations stable.
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Invasive Plant Conquers with Chemical WarfareAn invasive marsh plant conquers leafy enemies with toxic acid.
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Colorful Carpet of Cool Sea Creatures Discovered 2 Miles DeepA submerged mountain ridge in the North Atlantic is teeming with life.
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Tree-Climbing Scientist Makes Surprising DiscoveryHanging on a rope no thicker than my thumb about 200 feet above the forest floor ...
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Greatest Mysteries: How Many Species Exist on Earth?Only about 10% of animal species are known, scientists estimate.
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Yellowstone Wolves Reintroduce 'Ecology of Fear'Return of the Yellowstone wolf has elks shaking in their hooves.
