Bull sharks linger in warming Sydney waters

Bull sharks are lingering off Sydney's beaches for longer periods each year as oceans warm, researchers said Friday, predicting they may one day stay all year.

Sustainable food safety means managing risk, not erasing it

In an ideal world, every piece of food we eat would be free of pathogens at all times. In the real world, though, where 600 million people contract a foodborne illness every year, this just isn't the case. In fact, it's impossible—microbes ...

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