Squirrels are a group of arboreal rodents belonging to the suborder Sciuromorpha, where groundhogs and prairie dogs are also found (Wilson & Reeder, 2005). They belong to a group of Eurasian origin (Laurasiatheria) that through different dispersal events have been able to colonize all continents, except Antarctica and Oceania (Mercer & Roth, 2003). Squirrels can…