Garrott, R. A.; Eberhardt, L. E. (1987). "Arctic fox". In Novak, M.; etal. (eds.). Wild furbearer management and conservation in North America. pp.395–406. ISBN 978-0774393652. Oken, L. (1816). Lehrbuch der Naturgeschichte. Vol.3. Jena, Germany: August Schmid und Comp. p.1033. Hello, curious kids! Do you have a question you’d like an expert to answer? Ask an adult to send your question to [email protected]. Please tell us your name, age and the city where you live. Eventually, the baby foxes are ready to hunt alongside their mother. In an environment where lemmings are plentiful, the cubs can hunt for food easily with their mothers. They can also feed themselves with white goose eggs. It is relatively easy for them to get their paws on them. It is even possible for parents to hide any leftover white geese eggs for their children later as a source of food. If you watch long enough, you could easily imagine being absorbed into the Endless Snowflake Universe.

Goltsman, M.; Kruchenkova, E. P.; MacDonald, D. W. (1996). "The Mednyi Arctic foxes: treating a population imperilled by disease". Oryx. 30 (4): 251–258. doi: 10.1017/S0030605300021748.Arctic foxes heavily rely on hunting and catching prey to supplement their diet. However, the majority of their prey lies beneath the snow, making it difficult for them to catch it. Therefore, they have developed an inventive technique for finding and capturing their prey under the snow before killing and eating them. a b c Klir, J. & Heath, J. (1991). "An Infrared Thermographic Study of Surface Temperature in Relation to External Thermal Stress in Three Species of Foxes: The Red Fox ( Vulpes vulpes), Arctic Fox ( Alopex lagopus), and Kit Fox ( Vulpes macrotis)". Physiological Zoology. 65 (5): 1011–1021. doi: 10.1086/physzool.65.5.30158555. JSTOR 30158555. S2CID 87183522. The Arctic fox has been assessed as least concern on the IUCN Red List since 2004. [1] However, the Scandinavian mainland population is acutely endangered, despite being legally protected from hunting and persecution for several decades. The estimate of the adult population in all of Norway, Sweden, and Finland is fewer than 200 individuals. [18] Of these, especially in Finland, the Arctic fox is even classified as critically endangered, [48] because even though the animal was pacified in Finland since 1940, the population has not recovered despite that. [49] As a result, the populations of Arctic fox have been carefully studied and inventoried in places such as the Vindelfjällens Nature Reserve (Sweden), which has the Arctic fox as its symbol.

Perry, Richard (1973). The Polar Worlds (Firsted.). New York, New York: Taplinger Pub. Co., Inc. p.188. ISBN 978-0800864057. Like other canid species – a fancy way to describe dog-like animals – Arctic foxes have very sensitive ears. When food gets scarce, the Arctic fox can find or dig a snow den and hibernate. By slowing down its heart rate and metabolism, the fox can enter a hibernation-like state for a week or two and try to hunt again after some time has passed. Do Arctic foxes hibernate?Careau, V.; Giroux, J.F.; Gauthier, G. & Berteaux, D. (2008). "Surviving on cached foods — the energetics of egg-caching by Arctic foxes". Canadian Journal of Zoology. 86 (10): 1217–1223. doi: 10.1139/Z08-102. S2CID 51683546.

Although the Arctic fox’s winter coat is famous, it’s not permanent. The fox actually sheds its coat during the summer, and it becomes much shorter and darker, ranging from greys and browns to bluish hues. Not only is the shorter coat better suited for warmer weather, but it’s also perfect summertime camouflage when the snow melts and is replaced by grasses and shrubs.The average mass specific BMR and total BMR are 37% and 27% lower in the winter than the summer. The Arctic fox decreases its BMR via metabolic depression in the winter to conserve fat storage and minimize energy requirements. According to the most recent data, the lower critical temperature of the Arctic fox is at −7°C (19°F) in the winter and 5°C (41°F) in the summer. It was commonly believed that the Arctic fox had a lower critical temperature below −40°C (−40°F). However, some scientists have concluded that this statistic is not accurate since it was never tested using the proper equipment. [15] Lönnberg, E. (1927). Fjällrävsstammen i Sverige 1926. Uppsala, Sweden: Royal Swedish Academy of Sciences. When Alfie and Bonnie's mother leaves them in their warm den underneath the oak tree, warning them not to leave, the two fox cubs soon grow restless, and Bonnie begins to explore. Discovering a magical white substance coming down outside, she convinces Alfie to join her, and soon the two are cavorting through the snow-covered wood. But when its begins to get dark, and they realize they are far from home, things suddenly don't seem so fun... a b c Prestrud, P. (1991). "Adaptations by the Arctic Fox ( Alopex lagopus) to the Polar Winter". Arctic. 44 (2): 132–138. doi: 10.14430/arctic1529. JSTOR 40511073. S2CID 45830118.