Los ciclos de vida de los mamíferos (Mammal Life Cycles)

Many insects hatch from eggs and molt several times as they grow bigger. Others, such as butterflies, undergo a complete metamorphosis. A common science curriculum topic, insect life cycles may be confusing because of these differences. However, this book breaks down these cycles into easy-to-understand steps in both accessible language and colorful diagrams readers can turn to for review again and again. The most important vocabulary needed to talk about insect life cycles is further explained in fact boxes and an extended glossary.

Manifest Destiny the name given in the 1840s to a belief that the coast-to-coast expansion of the United States was both inevitable and justified, regardless of the means. Standing in the way were not only the native populations, but also the descendants of Spanish settlers who had lived in the Southwest for centuries. The racist belief that white men rightfully should expand their institutions into the area brought the United States into conflict with Mexico. War was declared in 1846, and by the time the Treaty of Guadalupe Hidalgo was signed in 1848, ending the war, the US had gained...

Una incisiva colección de ensayos, donde Jonathan Franzen vuelve con renovado vigor a los temas, tanto humanos como literarios, que le han preocupado durante mucho tiempo. Bien sea narrando su violento encuentro con cazadores furtivos en Chipre, bien sea señalando de forma aguda y conmovedora cómo el abuso de las nuevas tecnologías está erosionando el sentido de la intimidad, Franzen cumple en cada uno de estos textos la promesa implícita de llegar hasta el fondo y no escatimar nada. Así pues, estos ensayos dan fe de una inteligencia madura que se interroga sobre la identidad, el...

George Washington Carver was a skilled botanist who became famous for his work with peanuts and other plants. Readers will discover the captivating life of this incredible scientist in this engaging scientific biography translated in Spanish. Using colorful photos and graphs, children will learn why Carver was known as "The Plant Doctor" as a child and how his work with peanuts, sweet potatoes, and pecans helped change the way people used plants! The helpful glossary and index aid in better understanding of the content, while a simple, interesting experiment leaves Spanish-speaking children...

En palabras del Ignacio Solares, se desentierran las preguntas y motivaciones de la profesión como psicólogo. ¿Por qué divierte la Psicología? El autor parte de esta pregunta para realizar un recorrido por la historia de esta disciplina. Describe desde las principales corrientes psicológicas y sus promotores, Pavlov, Charcot, Freud, Jung y Skinner, y otros más.