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.

This video-enhanced lesson uses the NATURE episode "Spring's Eternal: Florida's Fountain of Youth" to learn about and explore Florida's springs ecosystem with particular focus on the animal life that lives there.

These video clips from the NATURE episode "Spring's Eternal: Florida's Fountain of Youth" can be used in the classroom for students to learn about and explore Florida's springs ecosystem with particular focus on the animal life that lives there.

Amphibians are linchpins in their ecosystems and important in medical research. What would the world be like without them?