"Amazing fact-filled story tells how prehistoric animals survived and thrived!"--Cover.

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! The Ice Age is very cool…for t

"Provides a revealing look at the Sabertooth Tiger through a fictional graphic novel story, accompanied by nonfiction facts and fossil record information"--

Alan hears three mean-looking cats discussing eating his neighbor. A short time later Alan learns that the lady has vanished.

In this book, simple, age-appropriate text introduces readers to the saber-toothed cat, from what it looked like to how it lived. Large, exciting images fill th