You can attach Hair curves to Fur Descriptions and then use the curves to style the Fur or to have the Fur react to dynamic forces. The workflow involves creating a hair system ( Hair > Create Hair > ), which has many setup options, before adding movement to fur using hair curves. Consider reading up on some topics in the Hair and Dynamics Curve guide, including:
To create a hair system to be used with fur
The curves appear on the selected surface, points or faces and a hairSystem node is created.