![](http://www.alamy.com/thumbs/6/2315821F-26A5-4A27-842D-CE70A39B405E/F82A0K.jpg)
2 male ring-legged fiddler crabs (Uca annulipes) fight
Size: 4368px × 2912px
Location: Sarawak, Borneo, Malaysia
Photo credit: © Andrew Mackay / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: aggression, animals, borneo, calling, claws, crabs, dimorphism, mangrove, nature, ocypodidae, rainforest, rivals, selection, wildlife