Fiddler crabs rid excess lead from their system by moulting.
Shedding an old shell could be about more than just getting too big for it. Crustaceans living in polluted waters may dispose of toxic metals by dumping their old casings, say researchers.
Crabs use their shells for garbage disposal
Fiddler crabs rid excess lead from their system by moulting.
Shedding an old shell could be about more than just getting too big for it. Crustaceans living in polluted waters may dispose of toxic metals by dumping their old casings, say researchers.
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