Watch a pack of curious and adorable arctic fox kits as they frolic and play… and as they discover and destroy a motion-sensor camera put in place by a filmmaker. It’s a clip from PBS Nature’s Fox Tales. Plus, more about these tundra-based mammals from Wikipedia:

The Arctic fox lives in some of the most frigid extremes on the planet but does not start to shiver until the temperature drops to −70 °C (−94 °F). Among its adaptations for survival in the cold is its dense, multilayered pelage, which provides excellent insulation, a system of countercurrent heat exchange in the circulation within the paws to retain core temperature, and a good supply of body fat. The fox has a low surface area to volume ratio, as evidenced by its generally compact body shape, short muzzle and legs, and short, thick ears. Since less of its surface area is exposed to the Arctic cold, less heat escapes from its body. Its paws have fur on the soles for additional insulation and to help it walk on ice. Its fur changes color with the seasons: in most populations, it is white in the winter to blend in with snow, while in the summer it is greyish-brown or darker brown…

Litters tend to average five to eight kits, but exceptionally contain as many as 25 (the largest litter size in the order Carnivora). Both the mother and father help to raise the young which emerge from the den when 3 to 4 weeks old and are weaned by 9 weeks of age.

We love all kinds of animal cam videos, including the animatronic animals of Spy in the Wild, a crab takes a video camera into its hole, and a squirrel that takes a GoPro up into the tree branches.

Plus: The Earth’s magnetic field helps foxes target mice in the snow.

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