Scientific Reports
Published March 14, 2019 14:00 EDT (News release from Nature Research Press)
Sea otters leave distinct wear patterns on the rocks that they use to break open hard-shelled food. The patterns, which can be recognised using archaeological techniques, could help trace locations of previous sea otter populations that are now extinct.
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Canadian co-author: Tim Tinker, Nhydra Ecological Consulting, Nova Scotia – ttinker@nhydra.com