Documentary.

Contains all 12 episodes from the first season.

Special features: Additional footage.

Narrator, Erik Thompson.

Examines the ultimate fighters of the Jurassic period, the gigantic beasts that stalked the earth millions of years ago. Some of these dinosaurs were larger than seven-story buildings and hunted their prey with strategy and cunning, transforming the prehistoric world into a battlefield. The temperature, terrain, and innate sense of the opponent's weaknesses and strengths all played a role in how each dinosaur planned its attack. Paleontologists are uncovering these fighting grounds and are gaining startling new insight into how maneuverability, team coordination, and striking at the exact moment meant survival.

DVD; Dolby Digital stereo.

Closed-captioned.