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Before animals, evolution waited eons to inhale
Evolution may have been waiting for a decent breath of oxygen, said researcher Chris Reinhard. And that was hard to come by. His research team is tracking down O2 concentrations in oceans, wher...
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Pipelines affect health, fitness of salmon
Pipelines carrying crude oil to ports in British Columbia may spell bad news for salmon, according to a new University of Guelph-led study.
Exposure to an oil sands product -- diluted bitum...
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