Butter Clams from 11,500-11,000 Years Ago and 10,900-9,500 Years Ago Showing Differences in Size (IMAGE)

Proceedings of the National Academy of Sciences

Butter Clams from 11,500-11,000 Years Ago and 10,900-9,500 Years Ago Showing Differences in Size

Caption

Butter clams from 11,500-11,000 years ago (left) and 10,900-9,500 years ago (right) showing the sometimes dramatic differences in size through time.

Credit

Image courtesy of Ginevra Toniello.

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