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Who were the earliest Americans? When, how, and from where did they enter and spread across the continent? And what is their relationship to modern Native Americans? Anthropologists develop theories to answer these questions based on the evidence they discover. Their theories—and the discoveries that prove and disprove them—are highlighted in this fascinating volume, full of awe-inspiring facts and incredible breakthroughs. Readers will feel like anthropologists and archaeologists themselves as they read about bones and artifacts, and what they reveal about the ancient cultures that roamed...

When Carlos the rabbit tucks his ears under a hat, he also finds it easier to avoid danger. Includes facts about rabbits.

María Cristina Ramos, autora de referencia, nos deleita y divierte con este libro en los que se habla de peces, de hormigas, de vuelos y bailes.Poemas frescos y bellos que tienen el poder de ponerte de buen humor de forma instantánea.

Introduces fast and slow animals, including such creatures as cheetahs, snails, tortoises, and hares.