The Paw and Fur - Hunting Elite is a society lead by Grizzly Adams (along with his pet Ben) in Port Hope. To join the Paw and Fur society you will need to talk to Grizzly Adams, you can sign up for different tasks depending on your current level. The tasks consist of hunting creatures of different numbers and sizes, most of which can be found in Tiquanda. Upon completing the tasks you will rise in rank and eventually gain additional rewards besides experience. Naji at the Thais depot would like to join the The Paw and Fur Society.
Ranks can only be attained by completing tasks from Grizzly Adams and gaining points for them. Killing bosses doesn't yield any points anymore.
See also: Killing in the Name of... Quest