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.
The Great Barrier Reef teems with life. From algae to a grey reef shark, the animals in this book are linked together in a food chain. Each one of them needs the others in order to live. Find out what eats what in the ocean!
The Sonoran desert teems with life. From an Octillo plant to a Crested Caracara, the living things in this book are linked together in a food chain. Each one of them needs the others in order to live. Find out what eats what in the Sonoran Desert!