Question

In the winter, the fur of the arctic fox is white. In summer, the fur darkens to a reddish brown. What most likely causes the fur of the fox to change colour

Answer 1

The most likely reasons to cause the fur of the fox to change color is to camouflage itself from its predators and able to hunt effectively. The change in color is also due to change in the seasons.

Where do Arctic fox found?

Arctic fox are found in the arctic region of the northern hemisphere. Arctic foxes prefer to live in the arctic tundra, where they feed on lemmings, voles and other small mammals.

The change in fur color is an adaptation to the type of vegetation found, or lack thereof, throughout the year.

In the summer, the Arctic fox lives in tundra on the edges of forests, so its fur color is well camouflaged. During the winter, the Arctic fox is commonly found on ice floes, where its white fur is key to hiding in plain sight.

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Answer 2

White fur not only provides camouflage in winter but adds warmth. A pigment called melanin, absent in white fur, gives the fox its brown summer coat.

What is camouflage?

Camouflage is a defense mechanism or tactic that organisms use to disguise their appearance, usually to blend in with their surroundings.

The hair shafts of white fur are hollow, trapping warm air from the animal's body heat and acting as insulation much the same way as a down coat does for a human wearer.

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