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Did a civilisation exist on Earth before humans? ⏲️ 6 Minute English

BBC Learning English • 2025-10-23T09:00:27Z • 6:15 • intermediate • Science

Lead

Have you ever wondered if advanced civilizations existed on Earth long before humans? Join us as we explore the intriguing Silurian hypothesis and its implications!

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Quiz

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Q1. What is the Silurian hypothesis?

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Q2. How old do scientists believe the Earth is?

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Q3. What does Adam Frank say about fossils?

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Q4. What does the idiom 'the blink of an eye' mean?

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Q5. What is a consensus in scientific terms?

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Vocabulary

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civilisation

/ˌsɪv.ɪ.ləˈzeɪ.ʃən/

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Definition

A complex human society, usually characterized by the presence of cities, social classes, and a form of government.

Example

The ancient Egyptian civilisation is known for its remarkable achievements in architecture and writing.

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hypothesis

/haɪˈpɒθ.ɪ.sɪs/

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Definition

A proposed explanation for a phenomenon, which can be tested through experimentation or observation.

Example

The scientist formulated a hypothesis to explain the unusual behavior of the species.

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fossils

/ˈfɑː.səlz/

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Definition

The preserved remains or traces of organisms that lived in the past, often found in sedimentary rock.

Example

Paleontologists study fossils to learn about the history of life on Earth.

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fraction

/ˈfræk.ʃən/

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Definition

A small part or portion of something larger.

Example

Only a fraction of the population attended the event due to the bad weather.

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consensus

/kənˈsɛn.səs/

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Definition

A general agreement among a group of people.

Example

There was a consensus among the experts that climate change is a pressing issue.

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mysterious

/mɪˈstɪr.i.əs/

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Definition

Difficult or impossible to understand, explain, or identify.

Example

The disappearance of the ancient civilization remains a mysterious event in history.

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