Prehistoric America [2 Discs]

"Two full-length documentaries on the prehistoric origins of a pair of American landmarks -- the Grand Canyon and the Everglades -- are paired up on this DVD release. The material on Prehistoric America has been transferred to disc in the full-frame aspect ratio of 1.33:1, and the audio has been mastered in Dolby Digital Stereo. The narration is in English, with no multiple language options. Bonus materials include a gallery of still photos and a collection of trivia facts."