For man, beast and nature, it's been a constant battlefield of change. Some strategic advances were anatomical while others were behavioral. While the bald eagle developed telescopic vision capable of spotting a hare a mile away, the shark evolved the act of sex as we humans know it. Discover what has propelled creatures large and small to survive. Trace the history and importance of these adaptations from their earliest beginnings to today.

Documentary. Title from set and disc containers. Set contains all 11 episodes from the series. Running time on disc container: 150 min.

Jaws -- Shape. Jaws: Get ready to pry open some of the deadliest jaws on the planet as we expose this fierce and ferocious anatomical weapon. Sharp, menacing, and more than an eating apparatus, the jaws of many animals are key to their survival. Go back along the evolutionary line to discover how various jaws developed in the first place -- Publisher's description. Shape: Over millions of years, pessures to gain even the slightest edge have resulted in nearly infinite variations on the basic animal shape. Explore the evolution of animal shape and how the slightest alteration of a leg or a head can mean the difference between life and extinction. Whether dictated by the need for speed, population density, or a host of other factors, the biological world revolves and evolves around size. -- Publisher's description.