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The Wild Ponies of Assateague Island

By James L. Stanfield, Donna K. Grosvenor

Lion Cubs

By National Geographic Society

Let's Explore a River

By Joseph H. Bailey, Jane R. McCauley

How Animals Hide

By Robert M. McClung

Dinosaurs

By Kathryn Jackson

Tricks Animals Play

By Jan Nagel Clarkson

A Day in the Woods

By Gordon W. Gahan, Ronald M. Fisher

Wilderness Challenge

Our Violent Earth

By Nancy Watson

More Far-out Facts

Hidden Worlds

By National Geographic Society, Donald J Crump

Zoos without Cages

By Judith E. Rinard

Dogs Working for People

By James L. Stanfield, Joanna Foster

Spiders

By Lillian Bason

Creepy Crawly Things: Reptiles and Amphibians

By Gene S Stuart

Pandas

By Donna K. Grosvenor

Namu: Making Friends with a Killer Whale (Books for Young Explorers)

By Fisher, Ronald M.

Honeybees

By Jane Lecht

Cats - Little Tigers in Your Home

By Donna K. Grosvenor, Linda McCarter Bridge

Road Atlas: USA/Canada/Mexico (NG road atlases)

By National Geographic Society

Mysteries of the Ancient World (National Geographic special publications)

By National Geographic Society

Amazing Animal Groups (Books for Young Explorers)

By Venino, Suzanne

Mammals (Nature library)

By National Geographic Society, Brownell, M Barbara

Animals of the High Mountains (Books for Young Explorers)

By Rinard, Judith E.

The Builders: Marvels of Engineering

By National Geographic Society

Mysteries of Mankind: Earth's Unexplained Landmarks

By National Geographic Society

Forgotten Edens: Exploring the World's Wild Places

By Lanting, Frans, Eckstrom, Christine

Splendours of the Past: Lost Cities of the Ancient World

By National Geographic Society

Great Rivers of the World

By Sedeen, Margaret

Hidden World of Wild Life

By Crump, Donald J