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Maria sees that African buffalo live in large herds. She wonders why they live in groups rather than on their own.

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What are some animals that live in herds?

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How does living in a herd help these animals survive?
How does it help them stay safe?

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Build an African buffalo.
Put a colour sensor on its head.

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Point the sensor down.
That is where the buffalo’s food is.

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Use a LEGO® piece as a predator.
Make it yellow.
Program your buffalo.
Have it make a sound when it sees a predator.

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Use your model to explain:
How can the buffalo notice a predator.

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Use your model to explain:
Why might an animal eating grass not see danger until it is near?

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Change your model.
This time, point the colour sensor forward.

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Show how your buffalo can see a predator.
How is this different than your first model?

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How can having some animals watch help the herd?

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Great job!