El ciclo del nitrógeno (The Nitrogen Cycle)

"Dino" Don Lessem brings readers face-to-face with various dinosaur species, detailing their habitats, way of life and how they became extinct. An acclaimed dinosaur expert, Don Lessem has written more than 30 children's books, writes a popular dinosaur column in Highlights magazine, and was an adviser for Jurassic Park. Take a trip through dinosaur time to meet these feathered dinosaurs face to face: The Caudipteryx had feathered arms and a tail that looked like a pom-pom! The Sinovenator may have used colorful feathers to attract a mate! The Microraptor may have used its feathers to glide...

With a direct tone and based on testimony, questions, real emotions, and inquiries, this book advises adolescent young men on several different topics: muscles, sports, women, acne, humor, the Internet, music, jokes, money, risks, and protection, among others. A book filled with information, practical ideas, modern tips, and illustrations, it has the added benefit of being endorsed by professionals specializing in each of the subjects it covers. Con un tono directo y sin prejuicio, este libro surge de testimonios, preguntas, emociones e inquietudes reales, intentando orientar y dar respuesta...

One Direction es una de las bandas más divertidas y más famosas de todo el Reino Unido. ¿Te considerás un/a verdadero/a directioner? ¡Vení a leer esta enciclopedia y enterate absolutamente todo sobre tu banda favorita de la A a la Z!

1940, Francia. Louis vive con sus padres en una pequeña villa minera. La guerra es el tema central entre los clientes del Café de los Amigos, donde Louis trabaja ayudando a la señora Jean, pero que no interfiere en su vida, hasta que los nazis y la policía comienzan a arrestar judíos...