This little guy on the left is the iron sulphide secreting scaly-foot gastropod. It's the only animal known to plate itself with METAL and lives in a thermal vent deep in the ocean. But last year scientists found a pale, genetically identical version of the species (on the right) that doesn't secrete metal, leading scientists to question what the purpose of the armour really is.
Read more: http://bit.ly/1aOnsls via Sciency Thoughts
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