El Secreto de La Piramide + CD

3 million years ago, men built the first stone tools for hunting. 2 million years ago, men walked in a completely upright position and had already discovered fire. 1 million years ago, men organized themselves in groups... Okay, okay, but what about the women? Where were the women in the meantime?

We have summarized the essential of the following texts: From POLITICAL ESSAYS, "The crisis of the Welfare State and the depletion of the utopian energies", from THEORY AND PRAXIS, "The classsical doctrine of politics and its relationships with philosophy", a small fragment of "Science and technique as ideology and the article "Modernity, an uncomplete project".

En El fascinante mundo de... las serpientes aprenderás que algunas especies son capaces de tragarse huevos enteros de gran tamaño. Verás cómo se enroscan las serpientes constrictoras alrededor de sus presas. Comprobarás que algunas especies detectan a los animales de sangre caliente. Descubrirás que no todas las serpienes son venenosas... y muchas más cosas sobre su fascinante mundo.

If asked to define a forest, readers might say, "It has a lot of trees." But many places have a lot of trees. So, what makes a forest a forest? Readers discover that a forest is unlike any other biome on Earth. And a temperate forest is even more specific. Readers learn the many life cycles found within a forest and how the energy pyramid explains the numbers of forest plants and animals. In addition, readers learn by examining how forces usually considered destructive work to help forests survive. 32pp.