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gastrolith |
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gastrolith [′ga·strə‚lith] (vertebrate zoology) A pebble swallowed by certain animals and retained in the gizzard or stomach, where it serves to grind food. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The digestive tracts of both plesiosaurs also contained dozens of gastroliths, stones that paleontologists speculate were used to grind up hard-shelled prey and thereby aid digestion. New analyses of the gastroliths in ostriches are casting doubt on that theory. Those clues include gastroliths, or stomach stones, that would have ground ingested vegetation to a pulp. |
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