In dealing with the harsh conditions of winter, wild creatures have a definite advantage (both mentally and physically) over we humans. Equipped with thick pelts or insulating feathers, they remain active, searching for the prey, edible plants or carrion that they need to stay alive. Unlike their human counterparts, they neither anticipate nor experience the regular shift from heated to unheated environments and thus (one would assume) barely notice the gradual change in temperature that occurs throughout the day and night.
Unhampered by technology, they are neither bombarded by dire weather forecasts nor reminded of the wind chill several times each day. Since they do not consult thermometers, they, unlike data-conscious humans, are likely unaware of the difference between 18 and 28 degrees F. We, on the other hand, often let the weather rule our lives or, at the very least, use it as an excuse to put off unpleasant chores. Besides, we have a warm house to retreat to!