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The world’s 126 marine mammal species are increasingly threatened due to climate change, overfishing, noise pollution, and other issues affecting their population numbers, according to a University of Exeter-led team in a recently-published paper in the journal Endangered Species Research.

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Duke Marine Robotics and Remote Sensing Lab

But certain interventions, such as hunting bans and conservation efforts by different countries, have also brought some marine species back from the brink, according to the researchers.