Learn all about the giant, tusked woolly mammoth, which coexisted with humans until it went extinct. Now in Spanish, this carefully leveled text includes full-color photographs, diagrams, and other
Saber-tooth cats have been extinct for thousands of years, but once upon a time they were the predators of their neighborhoods. Now in Spanish, this carefully leveled text helps
No hay nada más fascinante que los dinosaurios. En este libro para niños de Nivel 1 en español, ellos aprenderán todo sobre estos gigantes aterradores que una vez habitaron
Jack and Annie travel through time in their Magic Tree House and explore history while experiencing adventure after adventure. Readers will love this suspense-filled installment in which Jack and