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A comment on 'Bloodworms' harvest copper for metal jaws. Parent comment

Re:'Bloodworms' harvest copper for metal jaws by GravitasFailure on Friday April 29, 2022 @09:07PM (#31212425)
How about an iron age snail? It lives near deep sea vents and uses iron minerals in its shell and scales on its foot. It also has symbiotic bacteria in its gut so it doesn't feed directly.

https://morethanadodo.com/2015/04/28/the-iron-snail/

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Re:'Bloodworms' harvest copper for metal jaws by whatshisface on Saturday April 30, 2022 @12:32AM (#31213356)
Iron sulfide is an unrefined ore that humans could access well before the iron age (if or when they ever had a use for it). Fortunately for the birds (and fish with the ecological role of birds) of the world, there are no truly iron snails.
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