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Deserts revert to perennial grasses
Climate changes encourage shift from shrubs to grasses
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USDA's science magazine View digital version of Agricultural Research magazine
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USDA Unveils New Plant Hardiness Zone Map
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![Link to Science for Kids story.](https://webarchive.library.unt.edu/web/20121007082344im_/http://www.ars.usda.gov/is/images/nematode.jpg) |
Science for Kids
Know Your Nematodes |
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Come work with us Career paths from agronomy to zoology. |
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ARS Timeline: History of Research at the U.S. Department of Agriculture and Agricultural Research Service
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