John Chan / Crenulated fiddler crab (Uca crenulata) waving its major claw at another crab, part of a courtship display, Southern California, USA, June.
01628654
John Chan / Crenulated fiddler crab (Uca crenulata) feeding on detritus, Southern California, USA, June.
01075342
Pete Oxford / Fiddler crab {Uca genus} Coroni Swamp, Guyana, Caribbean. Note large claw
01123965
Mike Potts / Male fiddler crab {Uca sp}. Queensland, Australia.
00197159
Konrad Wothe / Fiddler Crab (Uca maracoani) waving, Caroni Swamps, Trinidad, West Indies
01099708
Georgette Douwma / Fiddler crab {Uca sp} male at burrow entrance. Bunaken, Sulawesi, Indonesia - note large claw
01629175
Rick Price / Flame fiddler crab (Uca flammula), two males displaying and fighting with sword-like pincers. Cyclone Creek, Talbot Bay, The Kimberley
01613966
Remi Masson / Crab (Uca sp) with large pincer, in mud. Kyushu Island, Japan. August.
01607579
Claudio Contreras / Princely Fiddler Crab (Uca princeps), Bahia Magdalena, Baja California Peninsula, Mexico, June
01607665
Claudio Contreras / Princely fiddler crab (Uca princeps), Bahia Magdalena, Baja California Peninsula, Mexico, June
01608404
Magnus Lundgren / Wild Wonders of China / Fiddler crab (Uca) male, hiding in an old shell at Ha Pak Nai mudflat, Yuen Long District, Hong Kong, China.
01608403
Magnus Lundgren / Wild Wonders of China / Fiddler crab (Uca) male, hiding in an old shell at Ha Pak Nai mudflat, Yuen Long District, Hong Kong, China.