The tube feet of echinoderms attach to surfaces via suction adhesion.

References

"Besides mollusks, echinoderm tube feet make use of suction adhesion, as do a wide variety of other aquatic systems--either as the only attachment mechanism or in combination with others. Among terrestrial systems one thinks first of wet ones--frogs for instance. But the mechanism finds use even in arboreal mammals." (Vogel 2003:427)

Book
Comparative Biomechanics: Life's Physical World, Second EditionFebruary 25, 2017
Steven Vogel