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John Muir described the Douglas squirrel as "by far the most interesting and influential of the California Sciuridæ". At full maturity, it is about 33 cm (13 in) in length (including its tail, which is about 13 cm (5 in) long), and weighs between 150 and 300 g (5.3 and 10.6 oz). Its appearance varies according to the season.
The latest common ancestor of Douglas ground squirrel and the California ground squirrel has been estimated to have lived approximately 0.725 million years ago, coinciding with the moment when the San Joaquin and Sacramento River started flowing, creating a barrier for gene flow between the populations that would give rise to these two species ...
Squirrels are one of the most familiar animals to people," said one scientist New 'Shocking' Evidence Reveals Some of California's Squirrels Are Carnivorous, Study Finds Skip to main content
California ground squirrels of all ages and genders were seen hunting, eating and competing over vole at a local park between June 10 and July 30, but the "carnivorous behavior" peaked during the ...
A California ground squirrel in Conta Costa County runs with a vole it hunted in its mouth. The images are some of the first documented incidences of carnivorous feeding of voles by squirrels ...
California ground squirrel (Spermophilus beecheyi) Order: Rodentia Family: Sciuridae. Thirty species of squirrels, chipmunks, and marmots occur in California. Subfamily Sciurinae (tree squirrels and flying squirrels) Humboldt's flying squirrel, Glaucomys oregonensis. San Bernardino flying squirrel, G. o. californicus (CDFW special concern; endemic)
Sciurini (/ s ɪ ˈ j uː r ɪ n iː /) is a tribe that includes about forty species of squirrels, [2] mostly from the Americas. It includes five living genera—the American dwarf squirrels, Microsciurus; the Bornean Rheithrosciurus; the widespread American and Eurasian tree squirrels of the genus Sciurus, which includes some of the best known squirrel species; the Central American ...
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