Miles
Deuterstomes are a classification of animals that are characterized as a tubular system starting with a mouth and ending with an anus. Humans are one long, complicated - 25ft long - digestive tube. It rumbles when we're hungry and as Mr Methane, on show 5 of 2009's Britan's Got Talent, demonstrates, it's gaseous exhaust gas can be controlled in what must be the oldest source of entertainment. Life's a tube!