"Within one linear centimeter of your lower colon there lives and works more bacteria (about 100 billion) than all humans who have ever been born. Yet many people continue to assert that it is we who are in charge of the world." - Neil Degrasse Tyson

Neil Degrasse Tyson: Within one linear centimeter of your lower colon there...

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"Within one linear centimeter of your lower colon there lives and works more bacteria (about 100 billion) than all humans who have ever been born. Yet many people continue to assert that it is we who are in charge of the world." - Neil Degrasse Tyson

Uploaded 7 years ago