Flatulence
Example:
The adult male expelled flatulence through his anus. It did not emit a sound wave with an amplitude or frequency that could be noticed by the human ear, but it still emitted a stench that could cause an alligator in Louisiana to enter cardiac arrest.
The adult male expelled flatulence through his anus. It did not emit a sound wave with an amplitude or frequency that could be noticed by the human ear, but it still emitted a stench that could cause an alligator in Louisiana to enter cardiac arrest.