草原田鼠會花大量精力及時間，來修剪洞穴附近的花草，但牠們並不會食用或使用這些植物。研究發現，除草後牠們可更清楚觀察四周，防範猛禽從天而降的突擊！
Brandt’s voles often cut tall grass around their burrows, they spend time and energy to do so but they don’t eat or use these plants. Study found they when they shorten grass around, they can better observe the approach of predators from above, so they can escape faster and keep themselves safe.
