Butterflies have bright and colourful wings that help them stay safe. When they sit on flowers, their wings look just like the colours of the flowers. This way, it is hard for other animals to see the butterflies because they blend in with the flowers. It's like when you wear a costume that looks like a flower to hide among real flowers!
So, colourful butterfly wings act like a special kind of hiding clothes that keep butterflies safe from animals that might want to eat them.