Breeding fiddler crabs takes more than just a tank—it takes the perfect setup. With hiding spots, a shoreline feel, and space to burrow, this terrarium turned into the ultimate crab paradise. The ...

Male fiddler crabs are lopsided, with one claw that seems about the right size and one very large claw. As you might expect, one function of the larger claw is to attract females. The males drum with ...