With the drop of its lower jaw, the northern leopard frog's tongue flips out.

北方豹蛙的舌头随着下颚垂下而翻转出来。

Then, because the leopard frog's tongue is positioned so far forward, it can retract its eyes to help push the prey down its throat.

然后，由于豹蛙的舌头位置非常靠前，它会收缩眼部，帮助将猎物推入喉咙。