But no real difference between eastern "groundhogs" and our Columbia basin marmots, right?
The eastern groundhog is the species Marmota monax. The yellow-bellied marmot found in the Columbia Basin is Marmota flaviventris (flaviventris means yellow-bellied in Latin). The hoary marmot found in the Cascades is Marmota caligata.
But this may not always have been the case. An interesting study done on marmot teeth found in the Porcupine Cave of Colorado revealed the range of Marmota monax to have extended into Colorado with Marmota flaviventris replacing them as the current residents. Scroll down to the conclusions if you don't have the time for the entire article.
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