The artwork of the sand bubbler crab

Walking on the Miramar beach in Goa in July 2018, we suddenly spotted these amazing tiny sand ball designs on the beach. They were made by the sand bubbler crab, and I felt they were like miniature versions of the Nazca lines in Peru, which I had read about a long time back and found fascinating.

When I looked for info on why these crabs make these tiny balls, this is what I found:

"Basically, the tiny balls are a byproduct of the crabs' snacking. They don’t eat the sand, but they do feed it through the bottom of an adapted mouth of sorts, filtering out all of the micronutrients that the high tide has brought in and dumped on the beach since their last feeding session. The crabs retreat into small burrows in the sand during high tide, and emerge every low tide to feed. You can actually see small trails that lead back to their burrows, with the little balls stacked up on either side." (From: Earth Touch News Network)

You can spend hours watching these crabs in action. Nature is incredible just has to be sensitive to small details, and there is no dearth of learning and entertainment when you are outdoors.

Watch how the crab goes about its business, and leaves a beautiful rangoli in the process!


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