This is part 2 of the video I shared yesterday. One beaver was grooming its fur at the edge of the river. A second beaver came over to join and they ended up giving each other a quick groom. Beavers have to groom several times a day to spread oil through their fur to stay waterproof. Beavers will sit on their tails to access oils through their cloacas. In addition, anal glands secrete oil through skin pores to hair roots. From there it is distributed with the front feet, teeth and grooming claws

Beavers have to oil their fur several times a day to stay waterproof. A special waterproofing oil is created by internal glands and accessed through the cloaca. Beavers usually sit on their tail to oil and groom their fur because it allows easy access to the cloaca. They fill their front paws with oil, then use their paws, teeth and hind feet to work the oil into their fur. It takes several minutes to do the routine. Each hind foot has a toe with a double nail that works like a comb when oiling