What physical principle do the microscopic grooves etched between a horned lizard's scales utilize?

Answer

Capillary action

The channels function as micro-pipelines that exploit capillary action, which is the ability of a liquid to flow in narrow spaces without external assistance, drawing water toward the lizard.

What physical principle do the microscopic grooves etched between a horned lizard's scales utilize?

#Videos

Fluid transport, lizard-style | Tomorrow Today - YouTube

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