What's the Big Buzz About Periodic Cicadas? 1. What does the word "annual refer to in the name "annual" cicada?

2. In what ways do periodical cicadas differ from annual cicadas?

3. Periodic cicadas hatch in huge numbers. How does this help their brood to survive?

4. After Brood X comes out in the summer of 2021, what year will this brood emerge again?

5. What other products might researchers try and design based on the nanopillars on the cicada's backs?

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