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To design better water filters, engineers look to manta rays
Filter feeders are everywhere in the animal world, from tiny crustaceans and certain types of coral ... of the mobula ray—a family of aquatic rays that includes two manta species and seven ...
The US military's massive unmanned 'Manta Ray' submarine cleared its first sea test
The Manta Ray, built by defense contractor Northrop Grumman, is an uncrewed underwater vehicle, a type of drone that can ...