MIT engineers have discovered that the mobula ray, a type of filter-feeding aquatic ray, utilizes a unique mechanism to feed ...

Sometimes the simpler the better. This sand water filter is easy to make and can provide clean drinking water nearly anywhere. South Korea declares martial law across the country 4 ways to improve ...

The researchers used this insight to design a simple water filter (see top) based on the mobula ray. Like the biological equivalent, water flowing between the comb filters at the proper rate ...

Engineers fabricated a simple water filter modeled after the mobula ray’s plankton-filtering features. Pictured are pieces of the filter. Filter feeders are everywhere in the animal world ...