New genetic information on the brachiopod Lingula anatina shows that the biomineralisation of calcium phosphate has evolved multiple times. In case you were wondering a brachiopod is a bit like a mollusc except that their two shells are normally assymetric. Lingula anatina has a shell composed of calcium phosphate and proteins. Sound familiar? It should, that is the same basic components of bones! So are lingulid brachiopods our distant ancestors? No. The genes responsible for biomineralisation in Lingula are independent of the genes used by vertebrates.