Overview: Paco and the others stage a race between a snail, a turtle, a worm, and a millipede. Robin sees a biologist studying animal locomotion. Astronaut Charlie Bolden shows Miguel a computerized shuttle simulator. Kathy gets an elementary physics lesson riding a free-fall ride at Six Flags Over Texas. In the last installment of Paco's Bureau of Standards, Paco measures the speed of speech with fast-talker John Moschitta.Film inserts: The speeds of various animals, people, and other devices; gestation periods of selected animals.THE BLOODHOUND GANG: ""The Case of the Human Whale, Part Three."" Vikki determines that the Human Whale always centers around one parking garage. It's the key to catching both the Human Whale and Flash Jordan.