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Fiddler Crab — printable fact sheet
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Fiddler Crab
Uca pugnax
The fiddler crab is a small, semi-terrestrial crustacean known for its distinctively asymmetric claws—males have one oversized claw used for signaling and combat, while females have two small, equal-sized claws. These crabs are commonly found along muddy or sandy shores, tidal f…
Did you know?
- Despite their small size, fiddler crabs are crucial ecosystem engineers—by burrowing, they improve soil aeration and nutrient cycling in coastal habitats.
- Male fiddler crabs' oversized claw can weigh up to half their body weight and is regenerated if lost. Fiddler crabs use sophisticated waving displays to communicate and attract mates. They can survive both in and out of water by holding air in their burrows during high tide.
What I learned
Draw the fiddler crab
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