Nature Shock: The Pig Bang Theory

Documentary series examining freak occurrences in the natural world. This episode looks at a series of explosive fires that ravaged pig barns across North America, causing devastating damage and burning thousands of animals alive. The suspected cause was found to be methane gas, formed within pig manure beneath the barns, but the explanation did not fit all the evidence. As the phenomenon continued, farmers reported a strange foam appearing in manure pits prior to the fires.