While taking a brief gander out of the woods, the two young, all-white moose were captured on video with their mother during a rare sighting in Norway. Large moose populations are found throughout northern Europe, and thousands currently live in Norway. The calves, which Maine's state deer and moose biologist, Lee Kantar, said appear to be less than a month old due to their size and mobility, were likely born in mid-May—most calves are born around May 15 each year. Twin moose, although born at a smaller size, are also common.

Although it's hard to tell for sure, Kantar said he thinks the moose calves might be albino: "If it's true that they are, it's extremely rare." They could also be piebald moose, he said, which are white with a few small brown specks. Still rare, they differ from albino animals that are pure white with pink or red eyes. Both albino and piebald moose are protected animals and legislation prohibits hunters from taking a moose that is predominantly white in color. Kantar said he's seen thousands of moose while working with wildlife in the Northeast United States, but he's never come across any that are white.

Although they lack the typical brown coat, it's unknown whether white and albino moose are at a disadvantage in the wild. The dark-colored coat makes them more difficult to see in a forest environment, Kantar said, but because there have also been sightings of adult moose with white coats, it may mean that cow moose—the mothers—have more responsibility when caring for young, white-coated offspring. Most cow moose are highly protective of their newborn calves, and the probability of survival in the first month of life is dependent on how well the mother defends the calf from "anything that's out there," Kantar said. You can watch video below: