Variation and Evolution

Living things have differences or vary. This means that some are more likely to survive than others. If they survive longer it is more likely that they will reproduce and pass on these variations to their children.

As time goes on more and more of the plants or animals inherit this useful variation because the ones without it don’t live as long.

In this way plants and animals can change over time.

This process is called evolution.

​​​​​​​Explore more detail in the PowerPoint below.


Charles Darwin (above) was the first scientist to come up with the theory of evolution for explaining how living things change over time. Find out more about him and his theory in the video below.

Follow these hyperlinks to learn more:-

  1. BBC Videos on Evolution
  2. Evolution of the Horse and Whale Video
  3. Evolution Megalab

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