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The Arctic ground squirrel typically has a beige-tan pelage with a lightly-spotted backside. Similar to the related prairie dog, it has a shorter face than the typical arboreal squirrels–due to its lifestyle of burrowing–as well as smaller ears, with a dark tail and white markings around the eyes.
Urocitellus is a genus of ground squirrels.They were previously believed to belong to the much larger genus Spermophilus, but DNA sequencing of the cytochrome b gene showed that this group was paraphyletic to the prairie dogs and marmots, [2] [3] and could therefore no longer be retained as a single genus.
Thirteen-lined ground squirrels can survive in hibernation for over six months without food or water and special physiological adaptations allow them to do so. [6] They alternate between torpor bouts of 7 to 10 days when their body temperatures drops to 5-7°C, and interbout arousals of less than 24 hours with their body temperature back to 37 ...
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 ...
It includes all known species that have had their tissues partially preserved within the permafrost layer of the Arctic and Subarctic. Most went extinct during the Late Pleistocene extinctions while some are still extant today. They have been listed to the most specific known taxonomic rank.
Arctic ground squirrel (ᓯᒃᓯᒃ, siksik) Spermophilus parryii [2] [1] Red squirrel (ᐊᐅᐸᖅᑐᖅ ᓯᒃᓯᐅᔭᖅ) Tamiasciurus hudsonicus [2]
Refreezing the Arctic, health care horror stories, holiday stress: Catch up on the day’s stories. Meghan Pryce, CNN. December 12, 2024 at 5:26 PM.
An Arctic ground squirrel burrow that has been excavated by a hunting barren-ground grizzly bear. A perhaps surprisingly high balance of mammalian foods consists of rodents or similar smallish mammals, as about half of the species consumed by brown bears weigh less than 10 kg (22 lb) on average.