You won’t believe it, but for a long time I cracked nuts for our squirrels ... Such a simple thought that in the wild they do an excellent job on their own did not occur to me ... They make it very interesting. With sharp teeth, they seem to cut the nut at the place where the two halves of the shell join. This process is also necessary for the squirrel to grind its teeth. If the teeth grow too long, the animal may die of starvation.