p66-4-3

As a
As a countermeasure , some moth species have evolved ears that are especially sensitive to the sound frequencies that bats use to find them . When the moths hear the bat frequencies , they try to escape by falling to the ground or flying evasively .

用一個對策，某些蛾類物種已經演化出耳，牠們的耳對可以聽到相當廣域的聲頻，蝙蝠就是利用這點找到牠們。當這些蛾類聽到蝙蝠的頻率時，牠們會利用墜落地面或是運用胡亂的的飛行來躲避。