00:00If you ever get lost in the woods, those little bumps on the tree's trunk could save your life.
00:04This is a fir tree.
00:05Beneath the bark lie small pockets filled with a thick, extremely sticky, yellow resin.
00:09A light squeeze is all it takes to make them pop, just like a pimple.
00:13But what comes out isn't pus.
00:14It's a valuable resin known as Canada balsam.
00:16For centuries, people have used it as a sort of natural bandage.
00:19When applied to a wound, the resin acts as an antibacterial agent and dries quickly,
00:23forming a protective layer over the injured area.
00:26And that's not all.
00:26Because it ignites so easily, it is also one of the best natural materials for starting a fire in the
00:31wild.
