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Manta rays have an unusual mouth filter that resists clogging
Instead of snagging in the filter, plankton ricochets toward the manta’s throat
Manta rays were built for speed — and to filter feed.
The aerodynamic ocean dwellers efficiently separate plankton from seawater using a previously unknown kind of filtration system that resists clogs and captures tiny bits of plankton, researchers report September 26 in Science Advances.
https://www.sciencenews.org/article/...sists-clogging
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