In this lesson, students will use segments from Nature: Wild Balkans to explore the roles and interrelationships of organisms in the varied environments of the Balkan Peninsula.

These video segments from Nature: Wild Balkans are designed for classroom use for students to explore the roles and interrelationships of organisms in the varied environments of the Balkan Peninsula.

During this video-enhanced lesson, using clips from NATURE's "Dogs that Changed the World," students will learn that all dogs came from one ancestor- the wolf. (Grades 5-8)

These clips from NATURE's "The Wolf that Changed America," are used in the lesson, to show students that all dogs came from one ancestor- the wolf.

During this video-enhanced lesson, students will learn about dogs' senses and how they compare to those of human smell and hearing. (Grades 5-8)

These video clips from the NATURE episode "Dogs that Changed the World" for students to learn about dogs' senses and how they compare to those of humans.