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30 Animals That Made Us Smarter

Cow and sewage treatment

30 Animals That Made Us Smarter

BBC

Technology

4.81.1K Ratings

🗓️ 15 August 2021

⏱️ 16 minutes

🧾️ Download transcript

Summary

S2 Ep8. A cow’s amazing stomach could hold the key to stopping wastewater pollution. Engineers have designed a new sewage treatment plant based on a cow’s unique digestive process. Wastewater is progressively cleaned by microorganisms until it’s safe enough to be released into the environment. This new plant does not need electricity to operate, so it’s environmentally-friendly. Thanks for listening. Let us know what you think. #30Animals Get in touch: www.bbcworldservice.com/30animals

Transcript

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0:00.0

One of the very first animals many of us learn about as we're growing up is of course

0:20.3

the cow.

0:22.9

As a young boy I remember reading picture books and singing songs about cows that lived

0:27.2

on farms.

0:28.4

Or was it a zoo?

0:29.8

There was even an old rhyme about a cow that jumped over the moon.

0:45.9

Well it's no coincidence that children still sing songs like this because cows and humans

0:52.0

have an important and perhaps a far more intertwined relationship than we might realize.

0:59.2

Cowls have been part of human life for thousands of years.

1:03.7

It's believed that cows were first farmed for livestock around 10,000 years ago and

1:09.4

even way before that they were hunted by our ancestors.

1:15.6

Some of the oldest figurative cave paintings ever found show humans alongside cow-like animals.

1:24.0

In early human cultures cows were regarded as sacred, worship so because their crescent

1:30.2

shaped horns resembled the different stages of the moon.

1:34.4

In fact many great ancient civilizations had some form of cow, God.

1:40.3

When humans began cultivating grain, cows were the first animals used to work the land.

1:47.9

Owning cows has always been a sign of wealth and prestige and for thousands of years

1:53.7

the cows have also provided us with food in the form of meat and milk, not forgetting

1:59.2

the butter, cheese, yoghurt and tasty ice cream that we can now also make from it.

2:06.2

The modern cow is an efficient meat and milk producing animal.

2:11.0

The average cow produces more than 20 litres of milk in one day.

2:15.8

As children we learn that cows can do this because of the endless hours they spend feeding

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