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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.