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#fish scale #concentric circles #growth rings #scale pattern #fish age determination

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#tree rings #tree trunk #wood grain #growth rings #age #dendrochronology #cut wood

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#tree rings #growth rings #wood grain #cross-section #age rings

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#tree rings #growth rings #natural annulation #ringed pattern #wood grain #dendrochronology

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#tree rings #wood grain rings #age rings #dendrochronology #log rings #growth rings