Spotting a rare, snowy white animal that would typically be colourful is a surprising treat, and stunningly beautiful. White feathers or fur can be caused by genetic conditions including albinism and leucism. Albinism is a genetic mutation in which the body cannot produce melanin pigments. Leucism is another genetic peculiarity that causes white coloration, but the animal may have some pigments, such as giving them blue eyes or colour patterning. Sometimes the white colour can make animals more vulnerable to predators since they stand out. However, the coloration can also help them blend in. Albino and leucistic animals can also be dangerously susceptible to sunburn. Owners of pets with albinism and leucism can make accommodations to protect their companions.

Leif Gisslén was out for a walk on Vindö island, in Sweden's Stockholm archipelago, on the morning of December 6, when he saw that a moose was in trouble. As news site The Local reports, Gisslén could tell that the moose was upset, but couldn’t see why. Moving closer, he could see that the big animal — Gisslén puts it over 400 pounds, and two years old — was tangled in a tree swing. Fearing the moose couldn’t free itself, and would be hurt he told the moose, “I’ll come and help you right away.” Gisslén returned with a saw, and worked for about 20 minutes to free the moose. Gisslén tells The Local he hopes the much-viewed video persuades homeowners to take down their swings when they’re away.