What happens when you fall into piranha-infested waters- - Antonio Machado-Allison

Jul 03, 2026 16:38 · 4:56 · English · Whisper Turbo · 2 Sprekers
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
You're peering into the Amazon River when suddenly you
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
lose your footing and fall.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Piranhas dart about in the rapidly approaching water.
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
So,
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
are you doomed?
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Will your fall trigger a fatal feeding frenzy?
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
To forecast your fate,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
let's see what we know about these fish.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
There are more than 30 piranha species.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
All live in the fresh waters of South America and have a single row
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
of sharp,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
interlocking teeth on each jaw.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
They use their teeth in a variety of ways.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Many are omnivorous and supplement diets of things like insects,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
crustaceans,
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
worms,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
and fish with fruits,
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
seeds,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
and other plant matter.
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Some,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
like red -bellied piranhas,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
both hunt and scavenge,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
and others like wimple piranhas.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
have specific dietary predilections,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
almost exclusively going after other fish's scales.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Species like red -eye piranhas are more solitary,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
while red -bellied piranhas form shoals of 10 to 100.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Red -bellied piranhas are among the most popularly depicted
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
and commonly regarded as especially aggressive.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
However, their reputation for rapacious pack hunting is misinformed.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
It's thought that the main benefit of their group living isn't cooperative
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
hunting, but instead protection from predators,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
of which they have many.
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Larger,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
mature red -bellied piranhas tend to assume privileged positions at
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
the shoal's center,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
where it's safest.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
And scientists have observed that red -bellied piranhas in
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
smaller groups breathe faster,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
probably because they're more anxious.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Interestingly,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
they also communicate.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
By rapidly contracting specialized muscles above their swim
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
bladders, they repeatedly bark when they're facing off with one another
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
or when captured.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
They make thudding noises when they're aggressively circling each other,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
fighting, or competing for food.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
And when things escalate further,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
they chase each other while snapping their jaws together.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Researchers suspect that these sounds are just a sampling of
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
their overall repertoire.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
which might also have some special uses during mating.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
But when do red -bellied piranhas get aggressive with humans?
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Well,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
when they do bite people,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
it seems to mostly happen in scenarios when they're being handled,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
when people are spilling food or cleaning their fishing catch in the water,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
or when people disturb piranhas while the fish are mating or
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
guarding their eggs during the wet season.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Starvation stress is also thought to lead red -bellied piranhas
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
to increasingly bold,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
aggressive behavior.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
And this could theoretically result in feeding frenzies,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
where each fish tries to get some of whatever finds its way into the water.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Despite this kind of behavior being extremely rare,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
rumors of it launched the piranha's international infamy,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
and this was in no small part thanks to former U .S.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
President Theodore Roosevelt.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
In 1914,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
he published a best -selling book in which he called piranhas
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
the most ferocious fish in the world and wrote that the scent of blood
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
could incite them to rapidly devour an entire cow or
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
human alive.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
But Roosevelt's account is generally considered circumstantial
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
and misleading.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
The feeding frenzy he witnessed is suspected to have been the result
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
of people purposefully starving red -bellied piranhas,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
then giving them the opportunity to feed on a cow carcass,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
all to put on an exciting show.
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
But where were we?
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Ah, yes,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
falling into piranha -infested waters.
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
So,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
what's your fate?
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Let's assume these are red -bellied piranhas.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
This being the Amazon River,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
they should be doing all right for themselves and not starving.
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Thankfully,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
you're also not getting the water alongside a bunch of fish guts.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
And ideally,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
you're not disrupting a piranha -breeding extravaganza.
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
You fall in,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
and the piranhas most likely avoid you.
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Calmly,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
softly swimming or wading to shore is generally recommended,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
because splashing is thought to attract piranhas.
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S… Speaker 1 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Indeed,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
they're equipped with the dentition to do damage,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
but they rarely attack humans.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
They usually have better things to eat.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
As you make your way onto dry land,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
there's no feeding frenzy where they skeletonize your body within minutes,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
and upon exiting the water,
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
you're probably pleased to find no chunks of flesh missing.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
Piranhas are far from the only animals that trouble us.
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
But how founded is our fear and loathing of cockroaches?
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
And is trying to rid the world of mosquitoes something we should consider?
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S… Speaker 2 (What happens when you fall into piranha-infested waters- - Antonio Machado-Allison)
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