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These resources from Nature: Leave it to Beavers explore beavers’ physical characteristics and how they fell trees and build dams.

This video from Nature: Leave it to Beavers illustrates how beaver ponds and lodges benefit other species.

This video from Nature: Leave it to Beavers highlights scientists’ discoveries of the dramatic impact of beavers on two different ecosystems.

This video from Nature: Leave it to Beavers highlights efforts to rescue and relocate beavers to areas where the species once lived.

This video segment from Nature: “Cold Warriors: Wolves and Buffalo” provides a rare glimpse into the life of a wolf pack in Wood Buffalo National Park in Northern Canada.

This video segment from Nature: “Cold Warriors: Wolves and Buffalo” begins with wolves in full pursuit of a buffalo herd, and follows the wolves as they veer away from the herd toward two lone buffalo.

This video segment from Nature: “Cold Warriors: Wolves and Buffalo” shows how wolves, after tracking down buffalo by their scent, force them out of a hiding spot in the forest in an effort to separate a calf from the rest of the herd.

This video segment from Nature: “Cold Warriors: Wolves and Buffalo” provides a glimpse into the world of wolves and buffalo in Wood Buffalo National Park in Northern Canada during winter.

In this video segment from Nature: “The Mystery of Eels,” Maori bush guide Daniel Joe and scientist Dr. Don Jellyman explore the eel’s central role in the culture and history of New Zealand’s native Maori people, and discuss the vilification it has suffered from the misguided policies of New Zealand’s government.