Atlantic mangrove fiddler crabs are expanding their range 200 miles north into temperate salt marshes along the southeastern U.S. coast, documented as far north as Beaufort, South Carolina.
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Mangrove crab outruns its namesake, expanding its range 200 miles north

200 Miles miles Range expansion distance
Beaufort, South Carolina Northernmost location
Florida Traditional range
Atlantic Mangrove Fiddler Crab (Leptuca Thayeri) Species
200 Miles North range expansion