Moths on Birch Bark
A pale speckled moth is hard to see on light birch bark, while a dark moth stands out. When soot makes the bark dark, the dark moth is hidden and the pale moth is easy to spot.
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In the picture
- Badge 1 sits on the pale speckled moth on the left light bark.
- Badge 2 sits on the dark brown moth on the left light bark.
- Badge 3 sits on the dark brown moth on the right soot-blackened bark.
- Badge 4 sits on the pale speckled moth on the right soot-blackened bark.
Examples
- Peppered moths in old English forests.
- Lizards that match the colour of the rocks where they rest.
Key takeaways
- Colours that match the background make an animal harder to see.
- When the background changes, the best-hidden colour can change too.
Carry on in the app
Three questions on this lesson. It has left the free week, so its quiz is for subscribers.
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