Los ciclos de vida de los insectos (Insect Life Cycles)

Ants are known as one of nature's hardest working animals. Their strength and persistence in bringing food to their colonies have been well documented. Now, beginning readers have a chance to learn about some of the littlest bugs in this volume written just for them. Complete with information about what ants eat, how they live, and generally how they stay so busy, this book is a must-have to satisfy the curiosity of your youngest naturalists. Eye-catching and unique photographs complement the low-ATOS text and aid in comprehension.

Describes which animals are loud and which are quiet, including such creatures as cicadas, whales, mice, and fish.

An illustrated field trip visits a newspaper to explain about reporting and editing the news, printing the newspaper, circulation, and related topics, in a study that spotlights some important vocabulary and concepts.

La contaminación del medio es, sin lugar a dudas, una preocupación de quienes habitamos este planeta, aunque con frecuencia no sepamos lo que opinan los divulgadores de la ecología. Planeta azul, planeta gris ofrece, a través de un relato ágil que se desarrolla en una escuela preparatoria o de educación media superior, las diversas formas de contaminación que afectan nuestro entorno. Mónica Lavín Maroto es una destacada escritora. Estudió la carrera de biología en la Universidad Autónoma Metropolitana-Xochimilco y trabajó en el Instituto de Ecología. Ha sido colaboradora de las...

For ages, the idea of machines that think and act on their own has gripped scientists, thinkers, and the general public. This book explores the history of artificial intelligence (A.I.), and how science fiction is quickly becoming science fact. It examines the technologies involved in A.I. and its inevitable effects on work, life, health, and many other aspects of human society. Rooted in history and science, this book provides an inside look at a topic that captivates engineers, scientists, and dreamers, but also raises important ethical issues and challenges how we see ourselves and our...