Name: クラッシュコースビッグヒストリー。人類の進化 (Crash Course Big History: Human Evolution)
Uploaded: 2021-01-14T05:20:22.000Z
Duration: 15 min 42 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：

that saw primates move out of East Africa

and transform the Earth into an actual planet of the apes.

And then we made the movie, and then some prequels

Man, I can't wait until I get to see the 2018 reboot

of this episode of Crash Course Big History.

So we're about halfway through our series,

and after five episodes involving no humans whatsoever,

today we are finally going to get some people!

I mean, if we're covering 13.8 billion years,

shouldn't humanity come in the last, like, two seconds

I mean, humans are totally insignificant compared

Like, we should be checking in on how Jupiter's doing.

Jupiter, by the way, still giant and gassy.

There's two reasons why we focus a little more

The selfish reason is that we care about humans

We are naturally curious to figure out where we belong

in the huge sequence of events beginning with the Big Bang.

Secondly, humans represent a really weird change

of the most complex things in the cosmos.

Whether you measure complexity in terms of biological

and cultural building blocks, or networks or connections,

Now, I realize that many of our viewers will be offended

by our human-centric bias, but humans are amazing.

I mean, we invented the Internet and we invented the animated GIF

and we inventedDr. Who, and then we invented Tumblr,

a place where all of these things can come together.

that would look more at home, like, next to a hamster wheel

Let's set the stage in the Thought Bubble.

So, the slow waltz of plate tectonics continued

into the New World monkeys, which is not a band name,

while mammals out-competed most marsupials in the Americas--

Australia saw an adaptive radiation of marsupials.

This of course meant that later, about 100,000 years ago,

when the Americas were having their share of mammoths

and saber-tooth tigers, Australia was having a spell

Then somewhere around 40 million years ago,

India, which had been floating around the southern oceans

as an island, smashed into the Eurasian continent

the world's tallest mountain range, the Himalayas.

Meanwhile in Africa, primates continued to evolve,

the line of the apes diverged from the Old World monkeys

and, no, neither you nor a chimp is a monkey,

nor did we evolve from the monkeys that are around today.

Moreover, we did not evolve from chimpanzees.

The chimpanzee is a cousin, as well, not an uncle.

We are not more highly evolved than they are.

Knowing about this common ancestry tells us a lot

about our shared traits with other primates.

For instance, we all have fairly large brains relative

We have our eyes in the front of our heads--

and depth perception was an excellent way

of telling how far away the next tree branch was

so as to prevent us from plummeting to our deaths--

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クラッシュコースビッグヒストリー。人類の進化 (Crash Course Big History: Human Evolution)

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