Name: Man vs beast: Who is more efficient? - 6 Minute English
Uploaded: 2022-06-17T16:45:28.000Z
Duration: 6 min 20 s
Description: Thousands of YouTube videos with English-Chinese subtitles! Now you can learn to understand native speakers, expand your vocabulary, and improve your pronunciation...

And I’m Roy. Whether it’s salmon swimming

upriver to lay their eggs or cheetahs running

faster than a car, animals can do incredible

just think of Olympic swimmers and sprinters.

efficient, using as little energy as possible

Yet even with our efficient bodies, no-one can

We’ll be comparing human bodies’ performance

But before that I have a question for you,

OK, Roy. I’ll reveal the answer later in the

evolved. Here’s Herman Pontzer, professor

a human stands next to a dog, for example,

posture is really typical of most animals.

are pretty long for our body size – humans

are part of the ape family – we’re are efficient.

One big difference however is that humans

to the ground. This crouched posture is not

Other animals, like dogs, have flat backs

doglegs – something bent in the shape of

a dog’s leg. The word dogleg can also mean

So, the design of the human body makes it

efficient compared to some other animals - but

How do Kenyan athletes break long-distance

running records, while many of us struggle

to run for the bus? The main reason, according to

Rhona Pearce, is training. But there may be

Age probably comes into it in that there’s

elasticity – that drops off as you get older,

so probably there’s a sweet spot in age for

running economy. So, in terms of weight, it

depends on what you weight is made up of,

if you’ve got more muscle mass that’s going

Efficient running depends on having flexible

muscles and tendons, and this flexibility

drops off, or decreases, as we get older.

This means that, in terms of running, the body

has an optimal age – the best age, or the age

Efficient runners need high muscle mass - the

amount of muscle in your body, as opposed

to fat or bone. So, training, age, muscle mass

a sweet spot – the best possible combination

of factors and circumstances. And from the

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Man vs beast: Who is more efficient? - 6 Minute English

struggle

incredibly

incredible

recap