Los fósiles y las rocas

Palabras que salieron de mis ojos antes que de mis labios. Si te pierdes, si te enamoras, si ríes, si lloras, solo tienes que leerme para encontrarte, para encontrarme, para llegar a ti.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute...

We often don´t stop to think about the origin of certain foods, but many of the foods we consume today only reached us as a result of great discoveries and the subsequent international commerce between east and west. This book brings us closer to the complex relations between different cultures and shows us the importance of ocean voyages in the development of international commerce.

¿Qué son realmente las bacterias? ¿Qué ventajas nos ofrecen y qué riesgos representan? Un viaje ilustrado para descubrir por qué estas tripulantes microscópicas del cuerpo humano son necesarias para nuestra salud. Tenemos la idea equivocada de que todas las bacterias son feas, sucias y malas... ¡pero no es así! De la mano de la simpática Bac, descubre cómo estos minúsculos seres que habitan por miles en nuestro organismo trabajan sin parar para ayudarnos a vivir mejor: las bacterias potencian el sistema inmunitario para protegernos de las enfermedades, producen vitaminas...