Name: 【TED-Ed】 毒液和毒有什麼區別？(Poison vs. venom: What's the difference? - Rose Eveleth)
Uploaded: 2014-03-22T05:09:42.000Z
Duration: 3 min 56 s

進階被動語態

by a venomous snake or touch a poisonous frog?

through its hollow fangs and into your flesh.

That venom will then travel through your bloodstream

In most cases, snake venom contains neurotoxins,

在大多數情況下 蛇毒液含有神經毒

proteins that can do all sorts of nasty stuff

like make your muscles fire uncontrollably,

In fact, between 20 and 80% of snake bites

都是所謂的「乾咬」（無毒咬擊）

to send a message without actually killing you.

You see, venom takes energy and resources

你要知道，蛇要消耗能量及資源

and they don't want to waste it on a warning shot.

the poison starts to interfere with your nerves,

preventing your muscles from contracting.

如果這隻青蛙的毒 運行到你的心臟

Poison has to be inhaled, ingested, or absorbed.

And some compounds can be poisons in one animal

Tetrodotoxin, a chemical 10,000 times more toxic than cyanide,

河豚毒素，是種比氰化物 還要毒一萬倍的化學物

It's also found in the deadly blue-ringed octopus,

它同時也在致命的 藍環章魚身上找到

Some animals can even be both poisonous and venomous.

有些動物甚至兼具有「毒」及有「毒液」

Scientists are constantly finding new animals

that employ toxins in weird, interesting ways.

only this one little remipede is venomous.

只有這個小小的 漿足動物是有毒液的

Scientists aren't totally sure how this venom works yet,

科學家還不能完全確定 這種毒液如何作用

but they think that it causes the unwitting victims' neurons

但他們認為毒液會使 不知情受害者的神經元

dissolving away the exoskeleton of its prey

But poisons and venoms aren't always all bad.

For thousands of years, humans have looked for

ways to harness the power of these toxic compounds for good.

The poison from cone snails is used as a painkiller.

to treat everything from malaria to irregular heartbeats.

So, what should you do if something bites or poisons you?

所以，如果某種東西 咬你或毒你該怎麼辦？

and don't use a tourniquet or knife on your wound.

也不要在傷口上用止血帶或刀子

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【TED-Ed】毒液和毒有什麼區別？(Poison vs. venom: What's the difference? - Rose Eveleth)

treat

attention

calm

toxic

【TED-Ed】 毒液和毒有什麼區別？(Poison vs. venom: What's the difference? - Rose Eveleth)

treat

attention

calm

toxic

【TED-Ed】毒液和毒有什麼區別？(Poison vs. venom: What's the difference? - Rose Eveleth)