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| Long-tailed weasel |
The most successful body plan within the
weasel family has been that for which it is best known: the small, slender, agile carnivore that feeds on prey too small for larger predators to bother with. In Europe and Canada, the best known such animals are probably
common weasels and stoats, both remarkably widespread animals across the temperate regions of the northern hemisphere. But, of course, they are far from alone, just two among a total of fourteen currently recognised species of what, for lack of a better term, we can call "true weasels".
In North America, common (or "least") weasels and stoats are found in Canada and in the northwestern and northeastern corners of the US; they generally do not venture into warmer climes, as they do in many parts of Europe and Asia. That's because, in America, there is another species of weasel better adapted to those regions. This is the
long-tailed weasel (
Mustela frenata), and it, not the common weasel, is the one best known in most parts of the USA.
