Sheep have fluffy wool that protects them from the cold in winter.
Sheep have fluffy wool that protects them from the cold in winter. But why does wool protect so well from the cold? It is an airy material that traps body heat and prevents it from escaping. It can also absorb a lot of moisture, which ensures pleasant, dry warmth.
Fun fact: Sheep's wool takes 6 to 12 months to grow back completely after shearing.