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⇱ University of California Museum of Paleontology

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Understanding Evolution

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Understanding Science

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👁 A figure with four panels illustrating the anatomy and behavior of a bivalve mollusk. The top-left panel is a close-up photograph of a bivalve shell hinge, with a red arrow pointing to the bd, which likely stands for "byssal depression". The top-right panel is a photograph of the dorsal view of a complete bivalve shell, with two red arrows pointing to the ep, likely "excurrent pore". The bottom-left panel contains two line drawings, labeled A and B, showing a bivalve buried in sediment. In drawing A, the bivalve is shown burrowing down. In drawing B, the bivalve is shown buried in a stable position with siphons extended. The bottom-right panel contains two line drawings, labeled C and D. Drawing C shows a different bivalve species buried with two separate siphons extending to the surface of the sediment. Drawing D shows a sequence of three smaller drawings of the bivalve in different orientations, likely demonstrating its movement.

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The UCMP is primarily a research museum, however, we have a limited number of fossil exhibits on public display, including a magnificent Tyrannosaurus rex . These can be viewed, free of charge, any time the Valley Life Sciences Building is open. Learn more here.

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1101 Valley Life Sciences Building
Berkeley, CA 94720-4780

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