Researchers used an old theory on vibrating plane wings to study how fish swim so well. They were able to double the swimming efficiency of their robotic fish over a range of speeds.
Flying fish use their fins both to swim and glide through the air.
Smithsonian Institution/Flickr
Fish fins are extremely flexible yet also strong. A special segmented fin design is the key to this useful combination of properties and could inspire new morphing materials.
Filter-feeding fish have had 150 million years to improve filtration.
Rob Holm / USFWS
Even the best engineered filters get clogged eventually. Fish mouths have evolved structures that create unique fluid dynamics patterns that solve that problem.
Hair as helpers in the quest for cleanliness.
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