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.

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.

The novel opens on a cold, gray landscape. It is the beginning of December. Oak fires are burning in the stately flickering hearths of Nideck Point. It is Yuletide. For Reuben Golding, now infused with the gift of the wolf and under the loving tutelage of the Morphenkinder, this Christmas promises to be like no other...

Esta novela aborda el drama de la guerra civil y el de miles de pequeñas guerras civiles. Historias personales (una por cada víctima y verdugo) que tuvo lugar cuando la contienda terminó y se impuso un silencio que duró medio siglo, bajo el cual palpitaban el dolor, los remordimientos, los recuerdos…

Nadar y leer son dos cosas muy difíciles de aprender. Da mucho miedo meterse en la piscina cuando no se hace pie o abrir un libro lleno de palabras incomprensibles. Óscar necesita ayuda para divertirse en el agua y para leer un libro de mayores, pero llegará un día en el que los brazos y las piernas se moverán al ritmo adecuado y las frases, por fin, tendrán sentido.

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...