The Microbes We're Made Of

The human body hosts more than ten thousand different kinds of microbes. Most of these bacteria aren't harmful - in fact, many of them actually aid the immune system (2:32)

Latest Videos

Preview thumbnail for video'Smithsonian Ingenuity Awards - Caroline Hoxby
Smithsonian Ingenuity Awards - Caroline Hoxby (2:02)
Preview thumbnail for video'Smithsonian Ingenuity Awards - Caroline Winterer
Smithsonian Ingenuity Awards - Caroline Winterer (1:50)
Preview thumbnail for video'The Nazi General Who Turned on Hitler
The Nazi General Who Turned on Hitler (4:38)
Preview thumbnail for video'Smithsonian Ingenuity Awards - Dave Eggers and Mimi Lok
Smithsonian Ingenuity Awards - Dave Eggers and Mimi Lok (1:56)
Preview thumbnail for video'Wild Inside The National Zoo: Bao Bao's First Year
Wild Inside The National Zoo: Bao Bao's First Year (4:52)
Preview thumbnail for video'This is the Rover of the Future
This is the Rover of the Future (2:20)
Preview thumbnail for video'The History of the Electric Guitar
The History of the Electric Guitar (5:16)
Preview thumbnail for video'A Pit Viper's Sixth Sense
A Pit Viper's Sixth Sense (2:03)
Preview thumbnail for video'The Origin Story of Wonder Woman
The Origin Story of Wonder Woman (4:36)