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Marine biologist Marah Hardt knows lots of things about the ocean, including why a quiet coral reef is cause for concern and what important roles oysters play in the marine ecosystem. At the 2015 World Science Festival event “Cool Jobs,” Hardt shared some of her causes for concern—and hopes—for the ocean’s future.
For more on Hardt and her work on oceans, check out this interview with her.
Image: Courtesy of Shutterstock
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