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Science

Spectrum: Changing hands

Technology gets blamed for many things - from causing obesity, to a reduction in our ability to communicate with each other - but could it also be leading to evolutionary changes? Specifically, are our hands changing as a response to tools and gadgets such as smartphones? Also, we talk about how the city of Chicago is struggling with a growing problem with rats.

Listen to audio 29:59

Host and producer: Jessie Wingard