Un día de trabajo de un biólogo molecular (A Day at Work with a Molecular Biologist)

"This oversized book introduces children to the alarming number of species that are endangered, threatened or, unfortunately, extinct. It includes amphibians, birds, mammals, reptiles, and fish, devoting an entire page to each animal. Readers will learn the threats facing each one, where each one lives or lived, including the type of habitat, its diet, size, and ongoing conservation efforts."

Una emotiva novela sobre la amistad, la vida y las segundas oportunidades «Da igual la suerte que tengas, lo importante es lo que haces con lo que te ha tocado vivir.» Scott es un joven sin trabajo que cree haber fracasado en todo. Con la autoestima por los suelos, a sus 27 años ya considera que ha desperdiciado su vida. No tiene una carrera, los trabajos no le duran y su novia le ha pedido espacio. Cuando su tío le consigue un pequeño sueldo por cuidar del viejo Horace, un anciano enigmático y huraño, a Scott le parece simplemente otra desgracia más... Sin embargo todo empieza a...

Diviértete con las locuras del pirata Arreglaentuertos y ahorra un dinerito con este fantástico libro-hucha.

The use of calendars dates back thousands of years. Why are we driven to record time, and what would happen if we did not? Who created the concept of calendars? Why do different cultures use different calendar systems? And why are calendars so important to us? It is about "time" we found out! Created in collaboration with the Smithsonian Institution, this Spanish-translated Smithsonian Informational Text builds reading skills while engaging students' curiosity about STEAM topics through real-world examples. Packed with factoids and informative sidebars, it features a hands-on STEAM challenge...