We found this bone along a river and can't figure out what it is. An overgrown beaver tooth??
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Yes, this is a rodent incisor; and from the size, I think a beaver would be a likely source. Its not overgrown: amazing as it seems, this is normal for a rodent incisor, which continue to grow throughout life and always have a large uneruped portion embedded in the jawbone. For a graphic example, see Squirrel incisors are insanely huge at http://svpow.com/2013/01/22/squirrel-in … nely-huge/
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David Hone
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