Sand Bubbler Crabs, an up-close look at how they make https://thekidshouldseethis.com/post/sand-bubbler-crabs-an-up-close-look-at-how-they-make-sand-balls
Grabbing sand with their tiny claws, the filter-feeding – Sand Bubbler Crab eats detritus and plankton bits – The cleaned sand is rolled into
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