Canada

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A 3.5-million-year-old Protarctos abstrusus bear in the ancient High Arctic, with evidence of a carbohydrate-rich diet suggested by its surroundings.

Ancient bear's surprising diet revealed by High Arctic fossils

A 3.5-million-year-old bear, identified from Canada's High Arctic, had cavities in its teeth, indicating a diet surprisingly rich in fermentable carbohydrates. The skeletal remains of this basal ursin

Dr. Evelyn Reed·June 6, 2026