Crab Desert Island Survival and Building Civilization

On the beach of an unnamed desert island in the South China Sea, there was a muffled "clang" sound, and five silver-gray metal boxes hit the sand, splashing up a piece of fine sand. The moment the box was opened, the robotic arm "clicked" and unfolded - five half-sized mechanical crabs, with shells smaller than the basin, with the crab legs still stained with factory protective oil, just "standing" on the desert island in a daze. This matter started half a month ago: Chen Yan and his scientific research team spent three years building these five "intelligent mechanical crabs", numbered 1 to 5. They originally wanted to test "whether non-carbon-based life can form a civilization on its own." The result is the sentence above: "Stop tinkering in the laboratory, throw them to a real desert island and see if they can survive!