I WONDER - How Do Red Pandas Keep Warm?

Red pandas need to keep warm during winter. They have a soft undercoat and a layer of coarse hairs that provide insulation. Their tails are long and fluffy, which they wrap around themselves like a blanket to stay extra cozy, similar to using a soft scarf.

In what way does the tail of a red panda function like a blanket?

What is the significance of the red panda's fluffy coat?