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![](https://webarchive.library.unt.edu/eot2008/20081107201020im_/http://www.nsf.gov/images/x.gif) Discovery Clams Convert Air Into Food
![](https://webarchive.library.unt.edu/eot2008/20081107201020im_/http://www.nsf.gov/images/greenlineshort.jpg)
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![Photo of a shipworm](https://webarchive.library.unt.edu/eot2008/20081107201020im_/http://www.nsf.gov/news/mmg/media/images/pedicellatus_f.jpg) |
Bacteria in a shipworm allow it to manufacture food from the nitrogen content in air.
Credit: Ruth Turner, Harvard Museum of Comparative Zoology |
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