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.

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 ...

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 ...