Tree Rings from a Dead Abies alba Tree in the Pyrenees (Paco Espela, Ansó, northeast Spain) (IMAGE)

Proceedings of the National Academy of Sciences

Tree Rings from a Dead Abies alba Tree in the Pyrenees (Paco Espela, Ansó, northeast Spain)

Caption

Tree rings from a dead Abies alba tree in the Pyrenees (Paco Espela, Ansó, northeast Spain).

Credit

Image courtesy of Raúl Sánchez-Salguero.

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