Astronomers spot giant bow shock around magnetic white dwarf 730 light-years away

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Nile perch introduced to Lake Victoria years ago transformed its fishery and threatened cichlids

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Effort to bring back the rapids of Grand Rapids that disappeared after industrial development

After nearly two decades of planning, construction is underway in downtown Grand Rapids to restore the historic rapids that gave the city its name. The first phase will remove four low-head dams and replace them with natural rock features designed to improve fish passage, habitat and river access. The project also includes measures to protect mussels and control invasive sea lampreys.

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Pennsylvania's abandoned coal mines may hold 220 billion gallons of water

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Australia releases 21 endangered turtles and tracks eight for two years

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London museum garden collected 11 million records using 50 sensors

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Pennsylvania to remove coal silt; project creates 19 acres of wetlands

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