In this installment of the National Geographic series aimed at children, youngsters journey back to prehistoric times through the magic of animation, clips from dinosaur films and silent-movie footage. Talking globe Spin (voiced by Dudley Moore) narrates the tale of an egg-poaching Struthiomimus that meets a fitting demise. The show's contemporary segment -- framed as a mock horror flick -- features vampire bats and scads of creepy crawlies.