Tusk_detail.jpg (IMAGE)

University of Alaska Fairbanks

Tusk_detail.jpg

Caption

A close-up view shows a split mammoth tusk at the Alaska Stable Isotope Facility. Blue stain is used to reveal growth lines. Samples were taken along the tusk using lasers and other techniques, allowing isotope analysis that provided a record of the mammoth’s life.

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Photo by JR Ancheta, University of Alaska Fairbanks

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