This story appears in the August 2016 issue of National Geographic magazine. All around her, guys wave seductively, beckoning her to their beach homes. How will the female fiddler crab pick a mate?

The Artstor website will be retired on Aug 1st. Limnology and Oceanography Vol. 56, No. 5, 2011 A behavioral mechanism for dispersal in ... The genus Uca (fiddler crabs) includes both estuarine and ...

I was looking at a fiddler crab – a species that wasn’t supposed to be north of Cape Cod, let alone north of Boston. As it turned out, the marsh I was standing in would never be the same.