La historia de la inmigración de EE. UU.: Datos (The History of U.S. Immigration: Data)

Deforestation, hunting and global warming have endangered countless species. The orangutan, okapi, giant panda and the blue whale are just some of the 30 species on the brink of extinction that are featured in this book. They need your help. The International Conservation Society illustrates how many of these species are left in the wild, and the latest status regarding their natural environment. You'll learn how you can aid endangered species and help sustain the ecosystems that give them life.

Martín De León was the only Mexican empresario to found a colony in Texas. This book also details De León’s integral role in the development of the cattle industry, along with other accomplishments that have made him a compelling figure in Texas history.

Un libro imprescindible para cualquier lector interesado en la grandeza de la mitología egipcia y su rica simbología, y en todo lo que rodea a esta enigmática civilización. El Antiguo Egipto ha llegado hasta nosotros rodeado de magia y misterio; desde que desapareciera, hace más de veinte siglos, sus pirámides, templos, tumbas y fascinantes criaturas, siguen encendiendo nuestra imaginación. Como si de cuentos se tratara, la autora nos relata los mitos egipcios más importantes, ilustrándolos con maestría y riguroso detalle. A partir de diversas fuentes históricas, como los Textos de ...

Young detectives will learn data analysis and probability while they are engaged in reading about crime scene investigations. Used in the classroom or at home, this nonfiction Spanish text includes mathematical charts to help students practice calculations and become more confident in their data analysis skills. With a glossary, an index, dynamic images, age-appropriate content, and easy-to-read text, students will build their math and reading skills while they are engaged in reading high-interest topics.