Hey.
Who threw that?
Oh no.
It’s a pack of angry chimpanzees,
and they’re coming for you.
There’s no way
that you can outrun them.
They're too fast.
So you'll need to get creative.
Maybe you can use your teeth?
Chimpanzees share 98% of human genes,
and they’re very smart.
They built complex societies
that include many dozens of individuals.
Scientists have seen
chimps using tools
to catch food,
and they even drink alcohol
from wine palms.
But they’re vicious.
If chimpanzees attack you,
they mutilate you
by attacking your face.
And they can tear off your hands
and testes.
So how could you defend yourself
against one?
Yes,
chimpanzees are smart.
But can they help you
write this important email?
Probably not.
Scientists have found
that the very thing that differentiates
humans from these great apes
is language.
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So, you would need language experts
to nail this.
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But even your clever written email
won't save you
from a pack of angry apes.
They are vicious.
When they attack,
they won't waste any time
when it comes to messing you up.
So how could you defend yourself
against one?
Some people keep chimpanzees
as pets.
But that would be a terrible idea.
They are aggressive
and unpredictable by nature.
In 2009,
Charla Nash went to visit her friend Sandy,
owner of a 14-year-old chimp
named Travis.
As soon as she got out of her car,
Travis punched her to the ground
and started tearing off her face.
Charla's friend tried to stop him,
but nothing worked.
When the police arrived,
Travis also tried to attack them.
One of the officers shot the chimp four times,
killing him.
Charla survived,
but she lost both hands
and needed a face transplant.
So please,
choose your pets wisely.
For many years,
scientists thought
that chimpanzees
were five times stronger than humans.
But newer studies compared their muscle
density and composition with humans’
and found that chimps are 1.5 to two times
stronger than humans.
You might have a chance of surviving a punch,
but you'll need to stay away
from their most powerful weapon,
their mouth.
Use whatever's handy
to keep a chimp away from you.
But don't use your hands,
as chimpanzees can grab them
and rip your fingers off.
If you don't have anything else,
use your feet to keep the great ape
away from your face,
vital organs
and testicles.
Among primates,
showing your teeth held together
is a signal of submission.
Clench your teeth together
and bare them keeping your lips relaxed.
Like smiling.
But be careful,
because showing your teeth
with your mouth wide open
means the exact opposite.
That means you are ready to attack,
so they will brutally hit you back.
Yup,
they’re faster and stronger
than we are
because their bodies have more
fast-twitch muscle fibers.
But humans’ slow-twitch
muscle fibers
are more fatigue resistant.
So if you can put some distance
between yourself and the angry chimps,
you may have a chance
of tiring them out
and surviving.
But you’ll need to keep moving.
Due to their low-fat bodies,
it's hard for chimps to float.
And their anatomy makes it tough
to keep their heads above the water
to breathe.
So, you could be a better swimmer
than they are.
Quickly, jump into the water.
It’s your last chance.
Phew.
That was a close call.
Chimpanzees can be scary,
but remember that
they are an endangered species.
To protect them, and to survive yourself,
it's best to leave these
great apes alone.
Now, you can relax
and enjoy floating downstream.
But don't get too comfortable,
because it looks like a crocodile
is coming your way.
They have one of the top 10
deadliest attacks on the planet,
killing an estimated 1,000 people
every year.
Want to know how an Australian man
fought one off?