Soil-burrowing animals have signi"cant anti-adhesive
characteristics through evolution over millions of years.
The reasons why the body surfaces of soil-burrowing
animals do not stick to soil includes varieties of geometrically
non-smooth morphologies, chemical composition
and hydrophobicity, microscopic electro-osmotic systems
formed by their bioelectricity and #exibility of their
body surfaces and the lubrication action of the liquid
substances on their body surfaces as well. Various biomimetic
methods were developed on the basis of the
anti-adhesive principles of soil-burrowing animals. These
biomimetic methods were the development of nonsmooth
surfaces for soil-engaging surfaces, electro-osmotic
systems, and flexible parts for removing soil accretion
on the soil-engaging components.