Su silencio

Know Your NumbersFind the hidden numbers in these exciting counting books. Count by ones, twos, fives, and tens!

"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 sea giants face-to-face: The Archelon was similar to a turtle, but its shell was made of crossed rib bone covered in rubbery skin! The Mososaurs had huge pointy jaws and grew to be fifty feet long! The Ichthyosaurs looked a lot...

Rainforests play an important role in the health of the world. Plants, animals, and people all depend on rainforests for many reasons. A tropical rainforest is filled with wonder and mystery, from the tallest trees in the canopy to the darkest and wettest leaves on the forest floor. The animals that inhabit this biome are varied and exotic. What readers may not realize is that not all rainforests mark the areas around the equator. Temperate rainforests, with milder climates, extend toward the poles. Readers learn the similarities and differences between these two biomes.

El mundo natural es un lugar extraño donde ocurren las cosas más insólitas y sorprendentes. Récords, curiosidades y extravagancias reunidas por temas: botánica, animales salvajes, domésticos, acuáticos, reptiles, insectos, aves, dinosaurios y fenómenos naturales, para enterarse de que el sauce enano no pasa de los 6 cm de altura, que los dientes del hipopótamo pueden llegar a medir medio metro, que el camello puede beber hasta 150 litros de agua de una sola vez, que el cocodrilo puede aguantar la respiración bajo el agua una hora... ¡lee y descubre!