¡En peligro! (At Risk!) (Spanish Version)

Wildlife scientists study animals and plants, and they learn about endangered animals and how to help save them. Many times animals are tagged to study them and track them. Dr. Ian Stirling studies polar bears and retrieves data by observing them throughout the year. Dr. Jane Goodall studied chimpanzees all her life and learned many interesting things about the way they live, which is much like humans. She believes that we can help animals and promote peace in the world.

Combine valuable fifth grade math and literacy skills in a purposeful way with the Spanish-translated math reader El regalo de cumpleaños del abuelo (Grandpa's Birthday Present). Focusing on the critical skills that 5th graders need to know to advance to the next level, this book incorporates key concepts into an engaging text that showcases math skills needed to create a budget and calculate sale prices. This high-interest nonfiction reader introduces how to convert percentages, decimals, and fractions. Filled with mathematical charts, diagrams, and practice problems, the text features in...

“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 duck-billed dinosaurs face-to-face: Corythosaurus could honk through the top of its head! Gryposaurus had hundreds of grinding teeth! Parasaurolophus could smack enemies with its strong tail! Plus, you'll get to know...

"El rico contenido y las llamativas ilustraciones de Mi biblioteca de ciencias, despiertan en los lecotres gran interés por la ciencia y los procesos científicos. La serie incluye datos interesantes sobre: la Tierra, el sistema solar, la materia, la energía, la fuerza y el movimiento, y la vida en nuestro planeta. ¡Por fin resulta divertido aprender sobre la ciencia!,"--page [4] of cover.

¿Te apuntas a conocer el lado más animal de la historia? ¿Sabías que uno de los actores más famosos fue un perro? ¿O que las composiciones más populares de Mozart las inspiró un pajarito? ¿Y que hay un coronel en el ejército noruego que es, en realidad, un pingüino? En este libro descubrirás las historias reales de un montón de criaturas, peludas, de plumas y con escamas, que nos sorprendieron salvando vidas, creando obras de arte o porque cambiaron el rumbo de la humanidad. En definitiva, nos ayudaron a hacer del mundo un lugar mejor.

Reveals the truth about cannibalism in pre-Columbian America, avoiding sensationalism and opting for historical accuracy on a matter that has been subjected to all sorts of misinterpretations as well as mistaken beliefs.