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| | Discover the Wisdom of Mankind on hedgehog (Site not responding. Last check: 2007-08-04) |
 | | Hedgehogs are most closely related to gymnures and other insectivores, including moles, shrews, tenrecs and solenodons. |
 | | A defence that all species of hedgehogs possess is the ability to roll into a tight ball, causing all of the spines to point outwards. |
 | | However, its effectiveness depends on the number of spines, and since some of the desert hedgehogs evolved to carry less weight, they are much more likely to try to run away and sometimes even attack the intruder, trying to ram into him with their needles, leaving rolling as a last resort. |
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