When a bear feels the need to relieve an itch or scratch, it seeks out a suitable tree that meets its requirements. The tree should have a sturdy trunk, preferably with rough bark or prominent bark textures. This allows the bear to effectively rub against the tree and achieve the desired relief.
Black bear marks up a tree.

Bear Scratch Tattoo
Bear Claw
Tiger scratched tree


Bear Claw Scratch On Tree
A brown bear appears to wave while scratching its back against a tree in Finland


Cinnamon black bear back scratching on a pine trunk photographed on a photo safari by Brent Paull. Check my website at www.amwestphoto.com and go to the safaris page for the latest safaris.
Bear Scratch Tattoo
Good Back scratcher!
Grizzly bear claw marks on whitebark pine tree.










Grizzly shows her cub how to rub up against a tree trunk | Daily Mail Online
Translation: "bear was here" _ Glacier National Park