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| | Prairie Dogs Poisoned by U.S. in South Dakota (Site not responding. Last check: 2007-10-15) |
 | | But conservation groups are concerned that the reduction of prairie dogs might affect a population of fl-footed ferrets (Mustela nigripes), which rely on the rodents for 90 percent of their diet. |
 | | The total length of an adult fl-tailed prairie dog is approximately 14 to 17 inches (35 to 43 centimeters). |
 | | Historic range-wide estimates of fl-tailed prairie dog occupied habitat ranged from approximately 100,000,000 to 384,000,000 acres (40,000,000 to 155,000,000 hectares). |
| news.nationalgeographic.com /news/2004/10/1026_041026_prairie_dogs.html (1013 words) |
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