In this episode, we go down on the farm to explore the science of the cow’s 4-chambered stomach. Learn about the mysterious muscle disorder that makes certain types of goats faint. Plus, find out what horsepower really is.

Originally released by Rotfeld Productions, 2015. Streaming video file encoded with permission for digital streaming by Infobase on July 17, 2015.

Pigging Out (4:30); --The Heavyweights (5:26); -- Very Sheepish (4:28); -- Farm Birds (4:06); -- Pop Quiz (1:39); .