I have a challenge for you today /an/. I challenge you to speculate an animal that evolved to USE lead. Not evolved to mitigate it, but actually use it for something productive biologically.
>>5136515a hardy little critter that lives on a moon that regularly travels through the radiation belt of the gas giant it orbits and it consumes lead rich minerals to extrude into a heavy radiation resistant shield.
>>5136515shell material for a molluscthey've used dumber
>>5136621Don't Xenophyophores like to accumulate heavy metals in their "shells" ?