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I feel a song coming on … Paul Starosta/Stone via Getty images

Why don’t female crickets chirp?

Only male crickets have wing structures that produce sound, but females are very good at following the signal.
You don’t need to watch where you step when it comes to bacteria. Westend61/Getty Images

Do you crush microbes when you step on them?

You can squash small bugs by stepping on them, but can you crush even tinier microorganisms like viruses and bacteria? It turns out that you’d need to apply a lot of pressure.

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