You may not realize it, but each one of us is a walking ecosystem.

#scientificfacts #didyouknow

As we all know, they can, however, spread them.

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Is it invisible?!

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That is fast!

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That is a lot of steps!

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That is a lot of miles!

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Like they have never existed.

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Amazing!

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Our future is at stake!

#scientificfacts #didyouknow

Humans would have probably rendered earth inhabitable by then.

#scientificfacts #didyouknow