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This is Scientific American 60-second science.I'm Innmi Craft.Got a minute?

Here's one way bites my get there next meal by ease dropping on flies having sex.That's eat a lot of seemingly undetectable flies.To find out how the winged memers find the insex.

Researcher set up a vedio camera inside coutia that was home to a batconi and lots of bugs¹.The veido showed that bazi rely on their eco-location skills to detect flies at specific time when they are engaged in rather noisy sex.

Flies are usually quiet in that territory and sit on uncloder cellings in caves when background's noise mix the echoes from their movement.But when flies are felling frisky².Meals can't help but flutter theri wings in meeting a bursed cracked sound at the bize pick a bond.

During more than 1,000 sexual in couners cart in the act in the vedio.5% of the insex were carted in the act by bats.The researches published in the journal occured biology.The study shows that ignorances can be safer than corner knowledge when predators³ are on the prow⁴.

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1 bugs
adj.疯狂的，发疯的n.窃听器( bug的名词复数 )；病菌；虫子；[计算机]（制作软件程序所产生的意料不到的）错误
参考例句：
All programs have bugs and need endless refinement. 所有的程序都有漏洞，都需要不断改进。来自《简明英汉词典》 The sacks of rice were swarming with bugs. 一袋袋的米里长满了虫子。来自《简明英汉词典》

2 frisky
adj.活泼的，欢闹的；n.活泼，闹着玩；adv.活泼地，闹着玩地
参考例句：
I felt frisky,as if I might break into a dance.我感到很欢快，似乎要跳起舞来。 His horse was feeling frisky,and he had to hold the reins tightly.马儿欢蹦乱跳，他不得不紧勒缰绳。

3 predators
n.食肉动物( predator的名词复数 )；奴役他人者（尤指在财务或性关系方面）
参考例句：
birds and their earthbound predators 鸟和地面上捕食它们的动物 The eyes of predators are highly sensitive to the slightest movement. 捕食性动物的眼睛能感觉到最细小的动静。来自《简明英汉词典》

4 prow
n.(飞机)机头，船头
参考例句：
The prow of the motor-boat cut through the water like a knife.汽艇的船头像一把刀子劈开水面向前行驶。 He stands on the prow looking at the seadj.他站在船首看着大海。