Name: 如果我們把所有的蚊子都殺了呢？ (What If We Killed All Mosquitoes?)
Uploaded: 2021-01-14T10:40:24.000Z
Duration: 4 min 47 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

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killing nearly one million people each year.

by biting someone who has a particular disease,

and injecting their saliva into your body.

Animals and farm livestock all around the world suffer

exactly how many mosquitoes there are in the world.

It's estimated that there's 7 trillion of them,

There's a number of ways we could get rid of them.

they could effectively wipe out mosquitoes all around the world.

But then, how would we get rid of the billions of bats in the sky?

You may think they're sucking our blood because we taste good,

they're actually doing it for their larvae.

So, if we somehow got rid of all our blood and--

Instead of these options, we may need to release

with enough of our genetically modified mosquitoes

mosquitoes would eventually be eradicated.

Well, millions of people wouldn't be getting sick and dying each year.

You could enjoy being outside in the summer without

Not many bad things would happen if we got rid of all the mosquitoes.

What about the circle of life and all that?

Don't mosquitoes contribute to the food chain?

bats and frogs eat quite a lot of mosquitoes,

but they're still not a hugely significant part of other creatures' diets,

and these animals will survive without mosquitoes.

And although mosquitoes do pollinate plants,

it's not significant enough to justify keeping the species alive.

is getting rid of mosquitoes the right thing to do?

After all, we would be getting rid of an entire species.

We should keep in mind that there are thousands of different species of mosquitoes,

but only six of them bite us and spread disease.

but there are some theories that mosquitoes may help to protect the Amazon rainforest.

That's because they're so deadly and annoying to the people trying to cut down the rainforest

that at times the bugs actually prevent them from doing so.

the human population is growing incredibly fast.

Maybe mosquitoes are helping us to keep our population in check.

This would most definitely be a good thing.

But what if instead of mosquitoes getting wiped out,

Well, that sounds like a story for another WHAT IF.