The beach at Cape Tribulation was lined with these BBs of sand. About a meter wide right below the high tide mark, this band of sand art is created by an army of dime sized crabs. The crabs make these balls of sand as they tunnel through the beach in their search for food. They roll the sand balls with their hind legs out the hole, using the same technique as the Dung Beetle in South Africa. I wondered if the crab's random patterns inspired aboriginal bead art that was displayed in the galleries of every city I visited.
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