STRANGE BUT TRUE

Every year, a detachment of the Colombian army is sent to the tiny Caribbean island of Providencia to protect the thousands of black crabs that emerge from their hiding places in the forests and begin migrating to the shoreline to lay their eggs. After incubating their eggs on the seashore for two weeks, the crabs then move into the sea, where the larvae hatch. After three or so weeks, those baby crabs that survive begin their trek to the forests — and the army goes home.