Purely genetics... Not only the hair is long, it is thicker and in realy cold klimats are holow with air traped inside.
Most aquatic animals living in cold climates can survive quite nicely thanks to their adaptations. Some animals have hair and others like whales have a tremendous amount of blubber that helps to insulate them from cold temperatures.
When the temperature is cold, the hair and fur on animals fluffs up, creating air pockets between hairs that insulate the body from the cold.
They survive in different habitats. Animals with hair can survive in cold and warm places, and animals without hair survive in warm places.
keeps the cold out during sub zero winter temperatures. the wool can be sheared and woven into clothing
All mammals have nose hair , but not cold blooded animals.
Dogs, like many animals, have hair to keep them warm in the cold weather, and to keep from getting sunburned when it is hot. The hair insulates and protects their skin.
Keratin is the structural protein for hair and nails (also horns in animals).
I found out that when your born you're hair is your natural color or you don't have hair. After you start growing you hair gets older as you body starts growing and getting older. As you see many seniors have white hair unless the dye or color it. In the cold a childs hair can get white because of the cold.
So they don't freeze to death. c:To insulate themselves from chilling cold
I heard it did but when I researched it I found out that it doesn't but it makes your hair shiny. Your hair grows 1/2 in per month
the cold air is making the water in your hair cold which makes your hair cold. if your hair is dry then there is no water in i for the hair to be as cold as it is when its wet.
A person can wear a coat in cold weather to keep warm. It is the same principle for animals that have feathers or fur.