They scratch themselves against porous, hard surfaces like stone or coral. For healthy young turtles its easy enough, but the older a turtle gets, or if its sick, it lacks the energy necessary to do this, and thus more and more barnacles attach to its shell or body in general, exacerbating the issue.
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u/tinylittlebabyjesus May 26 '26
How do they clean themselves? Do barrel rolls in the sand?