How many fiddler crabs are in the world?

It's difficult to provide an exact number of fiddler crabs in the world, as their populations can vary widely based on habitat, environmental conditions, and species. There are over 100 recognized species of fiddler crabs, predominantly found in coastal regions and mangroves. Their populations can number in the millions in healthy ecosystems, but specific population estimates are not generally available. Overall, they are abundant in suitable habitats, but precise global figures remain unknown.