An illustration of Northern flying squirrels from Dictionnaire universel d’histoire naturelle Atlas:t.1 (1849) edited by Charles d’ Orbigny.

Full text with many other colorful illustrations here.

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An illustration of Northern flying squirrels from Dictionnaire universel d'histoire naturelle Atlas:t.1 (1849) edited by Charles d’ Orbigny. Full text with many other colorful illustrations here. https://www.biodiversitylibrary.org/item/275639#page/9/mode/1up

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