The Whitebark Pine could not exists without the Clark's Nutcracker. It needs the Nutcrackers to disperse its large seeds (located on the top of the tree for easy access) in order to propagate. The bird carries a few seeds at a time and buries them just beneath the ground surface. A single Nutcracker can apparently harvest and cache up to 100,000 seeds in a single autumn. They can even find where they put them under a metre of snow and 9 months later!