Follows the chain reaction of losing one animal species, bees, to the grassland ecosystem.

Follows the chain reaction of losing one animal species, bees, to the grassland ecosystem.

Grassland 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 honey bees are.

Discusses the tundra ecosystem and the role of lemmings as a keystone species in helping to maintain it, describing the lemmings' place on the food chain and what would happen to the tundra if they were to become extinct.

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 what would happen if the sea otter were to become extinct.

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 happen to the temperate forest if the gray wolf were to become extinct.

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