How do the seasonal feeding habits, seasonal activity, and physical characteristics of bears contribute to their survival? What are some similarities and differences between bears and humans? What role do humans and ecosystems like that in Yellowstone National Park play in bear survival? Objective The student will be able to: • Describe the seasonal cycle of a bear’s life by examining its eating habits. • Recognize the shape and size of an adult grizzly bear and compare it to his/her own body size. • Describe how to distinguish black and grizzly bears. Background Yellowstone provides habitat f Duration: 90 Minutes.