Unlike any other planet that we know of, Earth is teeming with life. From the smallest microorganisms to the blue whale, life on our planet comes in an astounding variety of shapes, sizes, and colors. We don’t always see it, but life is constantly all around us and even inside of us. We harbor bacteria in our bodies that, if combined, can weigh up to nine pounds! That, of course, depends on the size of the individual and some other factors, but even having a single pound of bacteria in our bodies is quite mind-boggling to think about. Here are some more shocking facts about life, in it’s various forms, on our planet.

1. Old Salt

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Bacteria that was discovered uncased in salt from 250 million years ago was extracted, revived and grown by scientists. Fortunately, it appears that it was not some deadly germ from way-back-when that could have wiped us all out!