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Mercury pollution makes ducks more likely to get bird flu: study

Ducks contaminated by mercury pollution are significantly more likely to get bird flu, a study found Wednesday, pointing towards another way that human-driven changes to the natural world increase the risk of viruses spreading.

Firefighters slow growth of California blaze near Yosemite

Firefighters have significantly slowed the spread of a huge wildfire burning in a forest near Yosemite National Park that burned 55 homes and other buildings and forced thousands from their homes, officials said Monday.

Monarch butterfly populations are thriving in North America

For years, scientists have warned that monarch butterflies are dying off in droves because of diminishing winter colonies. But new research from the University of Georgia shows that the summer population of monarchs has remained ...

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