A new blimp built in Switzerland uses artificial muscles to glide through air as a fish moves through water, and it doesn't require engines or noisy propellers to do it.
The Airfish is about 26 feet long and looks like a giant flying trout. Airfish is filled with helium and made of special polymers that make it move.
Rainbow trout with six-pack abs and burly shoulders have emerged from a University of Rhode Island laboratory, and could someday find their way to humans' dinner tables. That's assuming diners don't panic at the sight of the muscular ichthyoid awaiting their knives and forks.