¿Qué Son Los Proveedores y Consumidores? (What Are Producers and Consumers?)

Did you know that most animals in the world don't have backbones? Learn more about invertebrates in this engaging, Spanish-translated nonfiction book. Readers will learn all about mollusks, arthropods, arachnids, and crustaceans while being stimulated from cover to cover with its detailed images and charts, intriguing facts, and informative text.

When President Thomas Jefferson bought the Louisiana Territory from cash-strapped France in 1803, he doubled the size of the United States without really knowing what he was getting. He dispatched Meriwether Lewis and William Clark and their Corps of Discovery to explore a territory that would include part or all of fifteen future states and to seek a water route to the West Coast. Westward expansion began immediately, all for the bargain price of 15 million dollars. This book richly explores this fascinating part of history.

Provides a basic introduction to caves, including geographical information and plant and animal life.

¡Descubre los secretos de la ciencia con «Futuros Genios»! El pollo Darwin se siente el animal más chiquito de la granja y querría ser grande y fuerte como un dinosaurio. ¡Acompaña a Valentina en esta aventura sobre la historia evolutiva y descubre cómo consigue que el pollo Darwin se sienta finalmente orgulloso de su especie! «Futuros Genios» es una colección pensada para compartir un momento de lectura y aprendizaje en familia. A través de ilustraciones sencillas y divertidas, Carlos Pazos, divulgador científico conocido por su blog Mola Saber, explica las nociones básicas de...