The Case of the Vanishing Golden Frogs: A Scientific Mystery

Who Was Milton Hershey?

The Case of the Vanishing Honeybees: A Scientific Mystery

Zombie Makers: True Stories of Nature's Undead

Snowy Owl Invasion!: Tracking an Unusual Migration

Strange Creatures (Unabridged)

Know-It-Alls! Interesting Creatures: Growing Minds with Music

The Great Bear Rescue: Saving the Gobi Bears

Asiatic Lion vs. Bengal Tiger

Wolverines: Nature's Cleanup Crew

Skunks

The Search for Olinguito: Discovering a New Species

On the Hunt with Lions

On the Hunt with Polar Bears

The Octopus Scientists

On the Hunt with Eagles

Life Cycles

On the Hunt with Wolves