Abstract

The rocky intertidal zone is an extreme environment with high, variable forces from crashing waves and strong ocean currents. A family of fishes, including the northern clingfish (Gobiesox maeandricus), has evolved an adhesive disc that allows them to adhere to rocks in the intertidal zone and even launch predatory attacks on molluscs that are attached to the rocks (Figure 1). Dylan Wainwright, Thomas Kleinteich, Anja Kleinteich, Stanislav Gorb, and Adam Summers studied the morphology of this fish disc to understand the properties of a reversibly adhesive disc that has a strong tenacity to stick to irregular, slippery, and wet surfaces.

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