A look at the Booker T. Washington National Monument

This is an educational edition of True Facts which is appropriate for younger audiences and classroom settings.

A parasite is an organism, or a living thing, that lives on or inside another organism. It depends on the other organism for food and other things that it needs to survive. The parasite’s victim is called its host. The host is generally much larger than the parasite. There are three main types of parasites. Let's Learn about the parasites with this video.

The biggest challenge in a parasite’s life is to move from one host to another. Intriguingly, many parasites have evolved the ability to manipulate the behavior of their hosts to improve their own survival -- sometimes even by direct brain control. Jaap de Roode details a few parasites that can really mess with the mind.

In 1974, farmers digging a well near their small village stumbled upon one of the most important finds in archaeological history – vast underground chambers surrounding a Chinese emperor’s tomb that contained more than 8,000 life-size clay soldiers ready for battle. Megan Campisi and Pen-Pen Chen shares the fascinating history of Emperor Qin Shi Huang.