" There are some frogs that you have to simulate rain for or they won 't come out and breed , " wiese said . " Other frogs , they just need to hear the sound of rain and the sound of lightening and thunder . That 's what sets off their hormones " .

威斯说：“有些青蛙只有在模拟下雨的环境中才会出来繁殖；而有些青蛙只需听见下雨声或雷电声，那就是刺激它们荷尔蒙分泌的东西。”