Approximately how many insulating fibers per square centimeter can the dense coat of the Northern Fur Seal contain?

Answer

46,500 fibers per square centimeter

The Northern Fur Seal exhibits an extremely dense coat, cited as having up to 46,500 fibers per square centimeter.

Approximately how many insulating fibers per square centimeter can the dense coat of the Northern Fur Seal contain?
mammaladaptationPinnipedFur Seal