Breeding display
Breeding behaviour in birds, reptiles and amphibians.

Slide show
Breeding display
Send comments
Name
e-mail
Comments
Cancel
Uca tangeri (Eydoux) West African fiddler crab
Decapoda, Ocypodidae
Males fighting.
Portugal, distrito de Faro, Alvor.
4/22/2019
IE016'09-190422154'JJK
All from this album
Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display Breeding display
Learn more

The genus Uca shows strong sexual dimorphism manifested by extensive development of one of male's claws. Large claw, that represents almost a half of body weight, is used for territorial fighting and for a waving display.