Tom Murphy must make camp before dark. He's carrying everything he needs to survive -- plus his camera gear.

The crocodile has few natural predators, an armor of bony plates covering most of its body and strong jaws capable of crushing anything from bones to cast iron.

To survive in harsh winter conditions, animals on Ellesmere must develop special adaptations to stay warm, conserve energy, and find food in a barren world.

Using segments from NATURE: "Moment of Impact, Part 2: Jungle," students will learn about skills and features that help species survive in the jungle.

These video excerpts from the NATURE episode, “Moment of Impact: Part 2, Jungle" accompany the lesson plan, It’s a Jungle Out There: How Species Survive in the Jungle.

During this video-enhanced lesson, students will watch segments from the NATURE film “The Secret World of Sharks and Rays” and learn about adaptations that have helped sharks and rays survive. (Grades 5-8)

These video segments from the NATURE film “The Secret World of Sharks and Rays” illustrate for students the adaptations that have helped sharks and rays survive.

However inhospitable the weather may turn in the highest regions of the Austrian Alps, evolution has equipped the diverse species that claim these heights as their home with the ability to survive.

Childhood may be the most important part of our lives, the time when we learn the skills that will help us survive for the rest of our years.