Bill Nye the Science Guy

In this video Bill Nye explains how marine mammals are like human be ings by the way they communicate with other mammals underwater and the fact thatthey breathe air. Bill Nye also shows how marine mammals have found ways to livein oceans all around the world and explains that blubber is a layer of fat whichis like rubber under the skin. This program contains an experiment to demonstrate the insulating properties of fat. The inside cover and paper inset contain experiments to show which substances provide better insulation and to demonstrate how body hair helps the body maintain a constant temperature.