Showing results for "System" in Mammals

Deciduous forest ecosystems can be found on nearly every continent. Countless animals and plants live in them. So what difference could the loss of one animal species make? Follow the chain reaction, and discover how important gray wolves are.

The ocean ecosystem is huge, covering most of our planet. Countless animals and plants live there. So what difference could the loss of one animal species make? Follow the chain reaction, and discover how important sea otters are.

The tundra ecosystem is vast, covering a large part of the far north. Countless animals and plants live there. So what difference could the loss of one animal species make? Follow the chain reaction, and discover how important lemmings are.

In this exhilarating installment of the award-winning Scientists in the Field series, journey to the isolated islands of Isle Royale National Park where the longest predator/prey study in the world is being conducted along with a controversial genetic rescue to save not only the wolves and moose...

Do you know how sea otters help kelp forests? Discover where sea otters live, how their actions make them ecosystem engineers, and more!

With strong dams and lodges, beavers create a home for many freshwater plants and animals. Dive into the lives of busy beavers and discover how they engineer their ecosystem to fit their needs.