Like humans, these bowhead whales enjoy a bit of pampering. The whales rub their bodies against large boulders to remove loose, dead skin. ➡ Subscribe: bit.ly/NatGeoWILDSubscribe About Nat Geo Wild: Welcome to a place so wild, anything can happen. Nat Geo Wild is the network all about animals from National Geographic, where every story is an adventure and your imagination is allowed to run wild. Get More Nat Geo Wild: Official Site: bit.ly/NatGeoWILD Facebook: bit.ly/NGWFacebook Twitter: bit.ly/NGWTwitter Instagram: bit.ly/NGWInstagram PhD candidate Sarah Fortune spotted this behavior while studying the species in Cumberland Sound in the Canadian Arctic. “It was like a bowhead whale day spa,” she said. Whales regularly molt, or shed the top layer of dead skin. These bowheads come specifically to Cumberland Sound to exfoliate their skin using the rocks. Read "See What Happens at a ‘Day Spa’ for Whales." news.nationalgeographic.com/2017/11/whales-skin-spa-oceans-animals-science/ Watch These Giant Whales Visit an Ocean ‘Day Spa’ | Nat Geo Wild youtu.be/hLRYrujG4ng Nat Geo Wild www.youtube.com/user/NatGeoWild