Cobayos

Bienvenido a Dinosaurium. Nuestro museo está abierto a todas horas. Sus salas albergan una extraordinaria colección de criaturas del Mesozoico, desde el pequeño troodón hasta el gigantesco braquiosaurio. Aprende cómo evolucionaron los dinosaurios y por qué unos tenían plumas y otros, escamas. Entra y explora el reino de los dinosaurios en todo su esplendor.

Fun and lovable illustrations offer encouragement and celebrate dreams for girls who know deep down they have what it takes to achieve anything they want.

Many people know that some Native American tribes are matrilineal. That means that historically, women had power in governance and some control in her home life. For the European patriarchs that came to North America, that was quite a shock! Through short, surprising, and often amusing facts, readers learn the role of Native American women in their tribes. Including tribes from across North America, the main content emphasizes their daily lives, clothing, and marriage customs, and introduces important female figures in history. A colorful layout and full-color photographs showcase the power...

Narwhals are often called the "unicorns of the sea." But these fascinating creatures are members of the whale family. Read all about narwhals as you practice addition. This Spanish math book combines math and reading skills and uses real-life examples of problem solving to teach subject-area content. The dynamic images, detailed sidebars, practice problems, and math diagrams make learning addition easy and fun. Text features include a table of contents, a glossary, an index, and captions to build vocabulary and increase understanding of math and reading concepts. An in-depth problem-solving...