Geologist Kirsten Oravec is in her element. "This is a walk on the Earth's mantle. These are wonderfully strange rocks," she says, marvelling at the Tablelands in Gros Morne National Park. The Earth's ...
Louisiana is turning to an alien insect to help control the spread of giant salvinia that's clogging many of the state's premier lakes and bayous. The Louisiana Department of Wildlife and Fisheries ...
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