Animals change to better adapt to their environment. Over long periods of time, nature helps the animals adapt by changing their body shape and color as well as adjusting their methods of getting and eating food, defending themselves, and caring for their young. In this videotape, students learn what changes different animals go through in order to adapt to their surroundings and survive. This videotape correlates to the following National Science Education Standards for Life Science: characteristics of organisms; life cycles of organisms; and organisms and environments. The videotape is accompanied by a teacher's guide and a hands-on student experiment. (CCM)