Tuning gastropod locomotion: Modeling the influence of mucus rheology on the cost of crawling

Details Tuning gastropod locomotion: Modeling the influence of mucus rheology on the cost of crawling Tuning gastropod locomotion: Modeling the influence of mucus rheology on the cost of crawling

2006-08-16

arxiv.org/abs/cond-mat/0608363v2

Phys. Fluids (2006) 18, 113102

Physics

Condensed Matter

Soft Condensed Matter

Corrected typos

Scientific paper

10.1063/1.2382591

Common gastropods such as snails crawl on a solid substrate by propagating muscular waves of shear stress on a viscoelastic mucus. Producing the mucus accounts for the largest component in the gastropod's energy budget, more than twenty times the amount of mechanical work used in crawling. Using a simple mechanical model, we show that the shear-thinning properties of the mucus favor a decrease in the amount of mucus necessary for crawling, thereby decreasing the overall energetic cost of locomotion.

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