Pratique du Shadowing: Why Don't Snakes Poison Themselves? - Apprendre l'anglais à l'oral avec YouTube

C1
The Egyptian cobra's venom is super toxic.
⏸ En pause
67 phrases
Si les phrases sont trop courtes ou trop longues, cliquez sur Edit pour les ajuster.
1
The Egyptian cobra's venom is super toxic.
2
Even in tiny quantities, it can kill relatively big animals.
3
But the Egyptian cobra, as well as pretty much every other toxic animal,
4
has to produce and store those deadly chemicals inside its own body.
5
So why don't toxic animals hurt themselves?
6
Hi, I'm Cameron, and this is MinuteEarth.
7
The first, and probably most obvious,
8
way to avoid kicking your own bucket is to make sure your poison doesn't work on you,
9
which is a strategy many poison dart frogs use use.
10
When their poison gets on another critter,
11
it snaps into specially shaped receptors in that animal's nerves,
12
eventually stopping its heart.
13
But the poison doesn't affect the frog itself,
14
because the frog has evolved a slightly different version of that nerve protein,
15
changing its shape just enough to prevent the poison from ever latching on.
16
Another option is to have a way to soak up your own poison before it can kill you,
17
like the pitohui, a tropical bird that puts poison in its feathers.
18
In order to keep itself safe from its own poison,
19
it produces proteins in its bloodstream that act like sponges that stick to,
20
and basically disarm, poison molecules.
21
The next strategy is even simpler.
22
Simply store your toxins in a place where they can't hurt you,
23
like murder hornets and black widow spiders do.
24
Both of these animals are susceptible to their own venom,
25
but their weaponry is located in a place where it is walled off from the rest of the body,
26
and for them, it's physically impossible to unleash it on themselves.
27
And finally, you could store your toxins in an inactive form,
28
like the slow loris, the world's only venomous primate, does.
29
The toxin the loris secretes from its armpits is completely harmless on its own.
30
It's only when the animal licks its armpit,
31
putting the venom in contact with saliva,
32
that the venom becomes activated.
33
And when the loris subsequently bites an enemy,
34
that venom gets transferred to the bite wound,
35
where it causes the victim's flesh to rot away.
36
Because carrying deadly chemical weapons inside your own body is such a high-stakes situation,
37
lots of toxic species actually use more than one of these strategies to stay safe.
38
Which brings us back to the Egyptian Cobra,
39
which uses all four methods to protect itself from its own venom.
40
The snake has those modified nerve proteins that make it immune to the nerve paralyzing toxin in its venom.
41
But since that venom is a cocktail that contains other toxins to,
42
the snake also stores it in walled-off glands.
43
Beyond just locking the venom away,
44
these glands also temporarily inactivate the venom in part by bathing it in acids.
45
It only becomes reactivated in a basic environment, like its victim's blood.
46
And if the venom happens to leak into the snake's own blood,
47
a sponge-like protein in its bloodstream mops up the toxins before they do any harm.
48
In other words, if you're going to be venomous or poisonous, Use protection.
49
If you're a snake and you want to level up your game,
50
you develop chemical weapons.
51
And if you're a human and you want to level up your career,
52
you develop, well, developer skills.
53
Boot.dev, which sponsored this video,
54
has created an easy way to learn backend web development in languages like Go and Python.
55
Hey, another snake!
56
They've gamified the whole learning process,
57
so as you learn to code,
58
you'll learn XP, levels, achievements,
59
and even get to complete quests.
60
All the game features on Boo.dev are designed to keep you motivated and moving toward your goal,
61
job-ready programming skills.
62
And all of this is within a system specially designed to have you writing eight to out of code,
63
because, well, the best way to learn is by doing.
64
Click the link in the description and use the code MINUTEEARTH to get 25% off your first month,
65
or even off your entire first year if you choose the annual plan.
66
Thanks, Boo.dev!
67
Thank you.

Télécharger l'application

Notation IA pour chaque phrase que vous prononcez

Scanner pour télécharger
Scanner pour télécharger
Download on theApp Store
Get it onGoogle Play
TRENDING

Populaires

Context & Background

In the fascinating realm of wildlife biology, understanding how certain animals manage their toxins is crucial. The video "Why Don't Snakes Poison Themselves?" by Cameron from MinuteEarth takes a deep dive into the mechanisms that allow poisonous creatures, particularly snakes like the Egyptian cobra, to wield their venom without inflicting harm on themselves. This exploration highlights the evolutionary adaptations that have enabled these species to survive and thrive by utilizing their deadly traits strategically.

Top 5 Phrases for Daily Communication

  • "Why don't toxic animals hurt themselves?" - An essential introductory phrase that prompts a discussion about self-preservation in nature.
  • "The toxin is completely harmless on its own." - A useful expression that can be used in various contexts, emphasizing the importance of active versus inactive states of substances.
  • "Store your toxins in a place where they can't hurt you." - A metaphorical phrase applicable to many life situations involving risk management.
  • "This method protects the animal from its own poison." - A practical expression referring to strategies of self-protection that can be applied beyond biology.
  • "Use protection." - A universally relevant phrase, underlined in the context of the video, can be used in both literal and metaphorical discussions about safety.

Step-by-step Shadowing Guide

To effectively enhance your English speaking abilities while watching this engaging video, follow these steps using the technique known as shadow speaking:

  1. Watch the video without subtitles: Familiarize yourself with the main themes and sounds without distractions.
  2. Listen to a segment: Play a short clip, such as the introduction where Cameron explains why toxic animals don't harm themselves.
  3. Pause and repeat: After listening, pause the video and try to replicate Cameron's speech. Focus on pronunciation, rhythm, and intonation.
  4. Use a shadowing app: Utilize a shadowing app to help track your progress. Record your voice imitating Cameron and compare it to the original audio.
  5. Review and refine: Watch the segment again, paying attention to any tricky pronunciations or phrases, and practice those until you feel confident.

Continuing with this method, you will not only improve your speaking skills but also expand your vocabulary and comprehension in the fascinating world of nature and science. By integrating resources like learn English with YouTube, you can gradually master shadow speech techniques and become a more proficient English speaker.

Qu'est-ce que la technique du Shadowing ?

Le Shadowing est une technique d'apprentissage des langues fondée sur la science, développée à l'origine pour la formation des interprètes professionnels. Le principe est simple mais puissant : vous écoutez de l'anglais natif et le répétez immédiatement à voix haute — comme une ombre suivant le locuteur avec un décalage de 1 à 2 secondes. Les recherches montrent une amélioration significative de la précision de la prononciation, de l'intonation, du rythme, des liaisons, de la compréhension orale et de la fluidité.

☕ Offrez-nous un café