This video focuses on how to get rid of fire ants in small areas, such as yards or small fields.

Series of hundreds of audio episodes broadcast the day by day explorations of Lewis and Clark.

PBS site explores the T. rex and its enormous size. Contains links to a video broadcast segment, a section on "Growing Up T. Rex," "Name That Sound" as well as a section on "Ask the Expert."

In our final episode of Crash Course Film Production, it's time to take a look at television production and how it differs from feature film production. It's subtle but it has a lot to do with how television shows make money for their...