Science News Wrap-Up NPR's John Nielsen wraps up science news of the past week, including new findings about flightless birds and spider sex.
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Science News Wrap-Up

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Science News Wrap-Up

Science News Wrap-Up

Science News Wrap-Up

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  • <iframe src="https://www.npr.org/player/embed/1490155/1490156" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

NPR's John Nielsen wraps up science news of the past week, including new findings about flightless birds and spider sex.