Discusses the temperate forest ecosystem and the role of the gray wolf in helping to maintain it, describing the wolf's place on the food chain and what would h

Discusses the ocean ecosystem and the role of the sea otter as a keystone species in helping to maintain it, describing the otter's place on the food chain and

Talks about each habitat and shows what would happen if the food chain was broken.

Talks about each habitat and shows what would happen if the food chain was broken.

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 s