Ripple effect: Water snails offer new propulsion possibilities

A UC San Diego engineer has revealed a new mode of propulsion based on how water snails create ripples of slime to crawl upside down beneath the surface. Eric Lauga, an assistant professor of mechanical and aerospace engineering at the Jacobs School of Engineering, recently published a paper in the journal Physics of Fluid called 'Crawling Beneath the Free Surface: Water Snail Locomotion,' that explains how and why water snails can drag themselves across a fluid surface that they can't even grip...

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