Bibleists, how did Noah coax a pair of six ton Tyranosaurus to walk up the gangplank of his ark?

He played on his rams horn trumpet. You see, back then, rams grew horns that had trumpet valves in them, and Noah had a large play list. Many believe he played an early, pre-evolution, Immaculately-Composed version of "Beautiful Dreamer." Tyranos loved this piece, and become very docile and would happily walk up a skinny, wooden gangplank.