Yep - a whole clade of shrews is informally known as the 'red toothed shrews' due to iron pigment incorporated into the enamel layer of the teeth, usually a little way beneath the surface. Chemically and spatially the iron is well known, but the precise reason for it is not! There are probably others also...
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Yep - a whole clade of shrews is informally known as the 'red toothed shrews' due to iron pigment incorporated into the enamel layer of the teeth, usually a little way beneath the surface. Chemically and spatially the iron is well known, but the precise reason for it is not! There are probably others also...
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