Describes the climatic conditions of the rain forest as well as the different layers of plants and animals that comprise the ecosystem.

This book takes the reader down below the surface of the ocean to explore organisms of all shapes and sizes. Find out how bacteria on the bottom of the ocean make food and how vampire squid and giant tube worms have adapted to life without sunlight.

Explores the waters, trees, flowers, and animals of the northern forest, spreading from the St. Lawrence River and Great Lakes into Canada and Alaska, and their relationship to each other.

"A poison dart frog clings to a slippery leaf. A sloth creeps through the canopy. The dense rain forest overflows with life. Discover the plants and animals that depend on each other in this biome"--

How does the climate, soil, and plant life of the deciduous forest support a community of animals? Take a walk through this biome among the pileated woodpeckers, fern leaves, and butterflies to discover this critical forest habitat.

Desert habitats: Take a video field trip to some of the driest regions on Earth to learn how different plants and animals adapt to little rainfall and extremes in temperature. The tropical Rainforest habitat: Peek inside the wettest habitat on land to learn about the special adaptations plants and animals make to ensure survival, including symbiosis. Living and nonliving things: Students learn that all living things have needs and some of these...

Describes the life cycle of the giant saguaro cactus, with an emphasis on its role as a home for other desert dwellers.

Explores the concept of food chains and discusses their importance in nutrient cycles and in the maintenance of ecological balance.