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coconut crab
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Coconut Crab

Sexual dimorphism
Crabs often show marked sexual dimorphism. Males often have larger claws, a tendency which is particularly pronounced in the fiddler crabs of the genus Uca (Ocypodidae). In fiddler crabs, males have one claw which is greatly enlarged and which is used for communication, particularly for attracting a mate. Another conspicuous difference is the form of the pleon (abdomen); in most male crabs, this is narrow and triangular in form, while females have a broader, rounded abdomen. This is due to the fact that female crabs brood fertilised eggs on their pleopods.

File information
Filename:129536.jpg
Album name:Fauna & Flora
Rating (1 votes):55555
Keywords:#coconut #crab
Filesize:99 KiB
Date added:Jun 02, 2009
Dimensions:650 x 488 pixels
Displayed:12 times
URL:displayimage.php?pid=129536
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