What's Living in You? Preview

Season 45 Episode 102

About the Episode

Whether they make you fat, fart, or freak out, microbes play a central role in your life. Right beneath your nose—on your face, in your gut, and everywhere in between—trillions of bacteria, viruses, and fungi are so abundant in your body, they outnumber your human cells. But these aren’t just nasty hitch-hikers. Many are crucial to your survival.

Aired: | Expires: | Runtime: 28s

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Extras

Pompeii's Secret Underworld Preview

Archaeologists uncover new truths about Pompeii, a wealthy Roman playground with dark secrets.

0:30
How Birds Survived the Dinosaur Apocalypse

Birds are today’s only living dinosaurs, but how did they survive the asteroid?

2:48
Egypt's Tombs of Amun Preview

A long lost ancient cemetery opens the door to a unique period in Egyptian history.

0:30
What You’re Probably Seeing If You Spot a UFO

Our skies are full of objects, natural and manmade, that are not as strange as you might think.

2:17
What Happens to Your Checked Bag at the Airport?

Getting the right bag to the right plane requires an ingenious system. Here’s how it works.

2:34
Area 51: UFO Sightings and an Infamous Government Cover-Up

Area 51’s UFO myths became a cover for secret testing of cutting-edge military technology.

2:35
Is the Government Hiding Information on UFOs?

What does the government know about UFOs? Experts weigh in on the need to identify these objects.

1:03
The Physics of Breaking, a New Olympic Sport

Here are three moves in breaking, the newest Olympic sport, that appear to defy the laws of physics.

1:19
Who is the Mystery Man Buried Under Notre Dame?

Can scientists identify the man buried inside a mysterious coffin found under Notre Dame?

3:00
Dino Birds Preview

Fossils reveal how birds survived the killer asteroid and became today’s only living dinosaurs.

0:29