body covering

323

The colors of a butterfly's wings are caused by tiny scales. Do they all produce colors in the same way?

356

This tiny creature is quite common in many parts of the world. Sometimes you will see one that is white on one end, and dark on the other. What does that mean?

412

Every morning, a huge flock of these beautiful birds visits us on their daily journey around the canyon. They have very specially adapted noses. What is so special about them?

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