A cougar does none of these mentioned in your question. There are differences in color--they can range from a tawny color to a reddish brown color--but they do not change colors-the kittens have spots and loose them as they turn into an adult. I know some animals do change colors with the seasons (for protection) but this cat does not.
No, collies do not hibernate (become partially dormant over the winter)
Tigers are predatory creatures that hunt year round, day or night. To hibernate means to become inactive or dormant and tigers never do that. They hunt and roam even in the days of winter. So no, tigers do not hibernate.
Koalas only go though a stage of dormancy or hibernation during their embryo state. In adulthood Koalas do no hibernate.
If you mean 'do raccoons hibernate', they do not. They are active nearly all winter. When conditions are bad, they will remain in their dens and sleep until conditions improve.
Neither. Carolina wrens do not migrate from the northern reaches of their territory although they are sensitive to the cold. Their populations tend to decrease as the winters become more severe.
no, beavers do not migrate they eat food they have stored
Neither. Technically, kinkajou do not hibernate, but they do go into a period of winter torpor. This means its body temperature drops to the point where it will remain curled up and asleep on cold days, but will become active, foraging for food, on milder days,
No, birds don't hibernate.
Volcanoes do not hibernate like animals do. They can become dormant for long periods, but this is due to a decrease in magma movement within the volcano. This can happen when the volcano is not being actively supplied with magma from the Earth's mantle.
They do not hibernate.
Neither. Technically, kinkajou do not hibernate, but they do go into a period of winter torpor. This means its body temperature drops to the point where it will remain curled up and asleep on cold days, but will become active, foraging for food, on milder days,
When volcanoes are said to be "hibernating," it means that they are currently inactive or dormant. This term is used to describe a period of low or no volcanic activity, where there is no eruption or magma movement. However, hibernating volcanoes can potentially awaken and become active again in the future.