How Do You Measure Time?

Provides an overview of the design, uses, weapons, and equipment of U.S. Navy submarines. Written in English and Spanish.

"In this title, children explore the reasons why they may feel worried, how to recognize these feelings, and appropriate action to take when they feel worried."

What’s the difference between a seal and a sea lion? These “second cousins” of the sea look similar, but there are many ways to tell these creatures apart. From ear shape to the noises they make to communicate, seals and sea lions are amazing creatures with both shared features and many truly unique attributes. They both share an ocean habitat, but when readers take a closer look, it’s easy to discover how they each fight off predators, mate, and raise their young in different ways. Captivating full-color photographs help to bring these marvelous mammals to vivid life.

“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 small dinosaurs face-to-face: Little Lesothosaurus was the length of a house cat! Epidendrosaurus could climb into trees like a squirrel! Liaoceratops had body armor and horns-and was only the size of a collie dog! Plus,...

Este tomo de "Animales Salvajes" lo hemos dedicado a un grupo de aves que se distinguen de las demás por tener las patas y el pico muy largos. Son las aves zancudas, de las demás por tener las patas y el pico muy largos. Son las aves zancudas, de las que vas a conocer las especies más importantes (garzas, cigüeñas, pelícanos, espátulas, ibis, etc.), sus hábitats y sus costumbres. ¿Sabías que el ibis fue un animal sagrado del Antiguo Egipto?