24xDVDRip | MP4/AVC, ~448 kb/s | 640x480 | Duration: 11:49:35 | English: AAC, 92 kb/s (2 ch) | + PDF Guide | 3.24 GB
An invisible world of astonishing complexity is all around you. A world so small you can't see it with the naked eye. A world so crowded that its population staggers the mind. A world in which you participate every day—often without even knowing it. The inhabitants of this world are trillions of bacteria, viruses, fungi, and other organisms, collectively known as microbes. Hundreds of thousands could fit on the period at the end of this sentence. And many play a powerful role in your life, from the bacteria in your stomach that help you digest food to the pathogens that make you sick.