The Samoyed moults when the temperature rises in spring. The dog's thick hair will fall off and some thin and soft coat will grow. These new hairs will not hinder the heat dissipation like the thick winter hair, but they can It protects the skin very well and prevents it from being damaged by too much ultraviolet rays. Winter hair will grow in autumn, mainly because the underlying fluff will increase, which can help the dog to withstand the cold to the greatest extent.