Walnuts, chestnuts, and other nuts are a favorite of squirrels, open bite hard shell, the squirrel is not only a game, can also help tooth wear.

• 核桃、栗子等坚果是松鼠的最爱，咬开坚硬的外壳，对松鼠不但是游戏，也可以帮忙磨耗牙齿。