The Case of the Vanishing Golden Frogs: A Scientific Mystery

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

Strange Creatures (Unabridged)

Know-It-Alls! Jungle Animals: Growing Minds with Music

When Plants Attack: Strange and Terrifying Plants

Know-It-Alls! Animals

The Octopus Scientists

Life Cycles

Venom

Know-It-Alls! Bugs

The Green Planet

Know-It-Alls! Spiders

Know-It-Alls! Fish

Kay's Anatomy: A Complete (and Completely Disgusting) Guide to the Human Body

Know-It-Alls! Bears: Growing Minds with Music

Kay's Marvellous Medicine: A Gross and Gruesome History of the Human Body