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Project Noah Nature School
Scopimera sp. or Dotilla sp.
Traces on the sand at low tide
"When the tide is out, they emerge on to the surface of the sand, and scour the sand for food, forming it into inflated pellets, which cover the sand. The crabs work radially from the entrance to their burrow, which they re-enter as the tide rises and destroys the pellets." from the reference link :-)
Indeed, this is made by little crabs that burrow in the sand. I have seen them making it in Thailand beaches :-)
Spotted on Jan 21, 2012
Submitted on Dec 9, 2012
+1
