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How these water fleas could save your water quality — and your life
On this Earth Day 2019, we celebrate water fleas and ecologist Meghan Duffy. Duffy studies how these water fleas maintain healthy waterways and fight deadly diseases. Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly ...
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