Explains the concept of a food chain and how plants, animals, and humans are ecologically linked

The Great Barrier ReefÊ 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

Describes the food chain of a desert, from the plants that live in the desert to the herbivores, carnivores, and top carnivores, and explains how the chain is a