What if elephants were as small as dogs? What if frogs were protected by armor? In prehistoric times, they were! In fact, other than a few unique changes, lots

"From the megabeaver to the dwarf elephant, this book introduces readers to some prehistoric animals that might just be familiar."--

What did your guinea pig's great-great-great-great-great-grandparents look like? Paleontologist Dr. Dean Lomax takes a close look at seven of our favorite pets

Diagrams showing skeletal features and tooth structure and a glossary of technical terms are included.

Meet the incredible animals that have disappeared due to competition, mass extinctions, hunting, and human activity. Lost Animals brings back to life some of th