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It is a simple natural response to keep themselves warm.

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Q: Why do deers grow thicker hair in winter what sort of change is this?
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What causes dogs to grow a winter coat?

Dogs grow thicker winter coats to keep warmer in winter. The signal for dogs to grow their winter coats is the length of daylight each day; as it declines, the dog's body reacts by growing a thicker coat.


Why would animal's coat change during the winter and summer?

they grow a thicker coat during the winter because its so cold then loss it in the summer so they don't over heat


Why foxes grow thicker fur as season change?

Find food


Many animals do this in the autumn?

Grow thicker coats, store food for winter, and put on pounds of fat.


Do cows change coats is with the season?

The actuall patern would not change, but in winter it would have a thick coat, autumn losing the coat, summer normal coat (thin), spring, begining to grow the thicker coat again.


Why do dogs malt?

In Summer Time They Malt So They Can Be Cooler And In Winter Time Their Coats Grow Thicker To Keep Them Warm


What do animals do to the changing weather when they stay active?

Animals that stay active during the winter days grow a winter coat, which is thicker fur then they have during the warmer seasons.


Why is summer wood thicker than spring wood?

It is not that it is thicker it is more denser The annular rings of the tree in the summer grow closer together because their is less rain. In the winter the rain swells the new rings; making them thicker to look at.


How does insects grow during winter?

how do you change a fraction in to a decimal


Why do caribou grow hair in the winter but lose it in the summer?

Thicker hair is needed as a protection against the extreme cold of winter. The thick coat is shed in summer as the weather can be very warm.


Do razers make your hair grow back thicker if your a woman?

Shaving does not "make your hair grow back thicker".


Will trimming eyebrow cause them to grow back thick?

No, they do not grow back thicker. There is a bit of a fallacy regarding this, but it has to do with the hair loosing the normal taper and being cut off square at the end, so it may appear thicker, but the thickness of the hair does not change.