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| The Marvelous Filters in the Manta Ray's Mouth It all began with a simple question: Why don't manta rays clear their throats? The car-size, kite-shaped fishes filter their plankton food from seawater, but they don't pause, close their mouths and snort clogs from their filters nearly as often as you ... | |
| New Story, Same Big Old Bird Madagascar's history contains some truly enormous animals, from giant lemurs to giant tortoises. The island was also home to 10-foot-tall flightless birds, which sadly disappeared hundreds of years ago. | |
| Smartphone system to test for lead in water Date: September 26, 2018; Source: University of Houston; Summary: Researchers have created an inexpensive system using a smartphone and a lens made with an inkjet printer that can detect lead in tap water at levels commonly accepted as dangerous. | |
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