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For some crab species, claws are different between males and females, like larger claws on male fiddler crabs, or color on blue crabs. All male crabs have a triangular shape near the rear on their underside, though, while females have a broad round marking in that same location.

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9y ago
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12y ago

female mussels are pink/orange, male are pale.

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14y ago

Male crawdads have a large pair of swimmerets on their abdomen. Females only have small swimmerets. Also, the males have a wider tail than the females do.

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Q: How can you tell male and female crabs apart?
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