Name: タコについての真の事実 (True Facts About The Octopus)
Uploaded: 2021-01-14T04:57:46.000Z
Duration: 6 min 14 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

Here we will explore
true facts about the Octopus.

Deep in the depths of the ocean,
lives a marvelous creature

sometimes referred to
as the floppy-floppy spider of the sea.

But it's true name comes 
from a Greek word

meaning "eight-footed"...
because it has eight arms.

There are two major 
suborders of octopuses:

The Cirrina octopuses
look a bit look like

an alien got freaky
with a weather balloon!

They have two little fins, 
a small internal shell

and lots of little cilia 
next to their suckers.

The other suborder, 
which we will be looking at today,

No internal shell, 
although some do try to fake it.

Many of you will know 
the amazing color and texture

as well as its ability
to fart ink at a moment's notice.

However, perhaps 
the most remarkable feature

They are the most intelligent 
of all the invertebrates.

Technically, not tons
of competition there.

I mean, clams are stupid. 
I'm sorry, I said it.

What is amazing is that 
while octopuses can learn

and remember complex tasks
like opening child-proof jars

and moving through mazes,
they are using an intelligence

that has evolved 
very differently than our own.

Unlike our intelligence, 
which is mainly centralized

in our head hole, the octopus
has distributed intelligence.

Three fifths of all of its 
neurons are located in its arms.

In a way, each of its arms 
actually has a mind of its own,

These arms are so capable, 
that even when they are severed,

they will continue to search
for and capture food!

And then try to bring that food 
back to a non-existent mouth hole.

Some octopuses will actually remove
one of their own arms

Data point of one, but it would 
confuse the hell out of me.

Each arm of the octopus is equipped
with over 250 suction cups,

each one with the ability
to rotate and grasp independently.

but the suction cups
contain sensory receptors,

which allow it to taste 
and smell what it touches!

This is an ability
I'm glad I don't have.

It is widely known that
the interestingness of an animal

is proportional to how difficult
it is to figure out

The octopus is, therefore, 
very interesting because its mouth

is exactly where I
thought its butt should be.

I'll be honest with you, I still 
don't really know where it is.

But my search history 
does contain the phrase

Inside the octopus' mouth 
is a beak, the only hard part

of the Incirrina body, 
meaning that the octopus

can squeeze through 
any hole larger than its beak!

The tentacles guide
food towards the beak,

When it comes to moving, 
the octopus has a variety of options.

It can crawl or use 
a water jet called a siphon.

Some scientists have argued
that two of its arms

Octopuses can even move 
on land quite effectively.

Yes, they get a little mushy 
on land, but don't judge.

Imagine what they think
when we skinny-dip.

"What happened to your little arm?"
That's what they say.

Although the octopus' eight arms
may seem identical,

one of the male's arms
is actually hectocotylus,

Therefore, shaking hands
with a male octopus

is sort of like 
playing Russian Roulette.

But instead of dying, you risk 
your hand getting pregnant.

The hectocotylus is used to transfer
spermatophores to the female,

either by inserting it 
into a hole in her mantle,

or by tearing it off and presenting
it to the female for later use.

To understand this, imagine
if you are on a date

To the octopus, human sex
looks really, really boring,

like we're just saying 
hello to each other.

Because when they get
it on, it can get crazy!

When the female has fertilized 
her eggs, she retreats

to an underwater crevice 
and attaches her eggs to the roof.

She will stay with them,
gently blowing fresh water over them,

protecting them, as she 
slowly starves to death.

Basically, everything 
they do is hardcore.

but thousands of little babies 
emerge, floating.

字幕リスト動画再生

タコについての真の事実 (True Facts About The Octopus)

sort

ability

butt

dumb