Mice Evolving at Warp Speed

Changes to a neighborhood park in Illinois have affected the Northern White-Footed mice who live in the forest nearby. Scientists who study living mice today compare them to museum samples of dead mice to understand how they've changed and why. What they are finding is that the mice are growing much faster than their ancestors. Listen to learn why the mice are changing and why no one picked up on it sooner.

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Story Length: 3:37

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Listening Comprehension Questions

In what ways did Andrew Carnegie’s libraries serve their communities?
How did Carnegie benefit from a library when he was growing up?
Which personality traits helped propel Carnegie from poverty to riches? Bring specific details from the story to support your ideas.
According to Carnegie, what should rich people do with their money and why? Why was Carnegie known as both generous and “brutal”?

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In your opinion, what should really rich people do with their fortunes?
What does it take for a person to rise from “rags to riches”?

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