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Esta es la historia de Bart, el niño que soñó con las Súper-Ratas, un ejército de roedores entrenados para mejorar la vida de las personas. Pero lo que nadie esperaba es que ayudaría a salvar la vida de miles de personas. Gracias a su olfato, las ratas de Bart detectan minas terrestres por toda África y ayudan a la investigación de enfermedades como la tuberculosis. Con su amor por los animales, su creatividad y perseverancia, Bart ha contribuido a crear un mundo mejor. La historia de Bart Weetjens es la de alguien que, desde muy joven, se dio cuenta de que había cosas a su alrededor ...

Readers will learn about arachnids, insects, arthropods, and even parasites in this fascinating nonfiction reader that has been translated into Spanish. Featuring photos of these tiny creatures (some up to 100 times their normal size!), informational text, a glossary, and an index to aid in vocabulary development, this book will have children eager to learn more about these tiny creatures and the big impact they have on human life!

Describes To Young Readers What Flippers Look Like, That Some Animals Use Flippers To Swim Or Crawl, And Tells Of Different Animals That Have Flippers.

Engineers have built some incredible things. But with every new feat, there is failure. Readers will learn about engineering feats and failures like the Titanic, the Hindenburg, the Hoover Dam, and more in this engaging, Spanish-translated nonfiction title. This book features brilliant images, charts, and intriguing facts in conjunction with informational text and mathematics skills to keep readers active and engaged.