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 term fiddler crab refers to around 100 species and subspecies of crabs from the genus Uca. They are found along beaches ...

56, No. 5, 2011 A behavioral mechanism for dispersal in ... The genus Uca (fiddler crabs) includes both estuarine and coastal species, the zoeae of which must travel varying distances to reach the sea ...