"All science classrooms discuss animals that hibernate during winter months, but few know about animals that estivate--a prolonged sleep during hot or dry periods. Dual layers of text awaken readers to the reasons estivating animals become dormant--whether it's because warm weather threatens food supply or to avoid increased body temperatures."--

This title is replete with brilliant photographs and exclusive in-depth coverage including Bob Ballard's 1985 discovery.

Aprende todo sobre los animales más mortales en este emocionante libro para niños. Está lleno de imágenes bellas e interesantes que les enseñan a los niños todo sobre estos animales asombrosos. Este libro de Nivel 3 es apropiado para los primeros pasos de lectura independiente o para una experiencia de lectura en voz alta, ¡perfecto para motivar a futuros científicos y exploradores!

Your mouth contains more bacteria than a dog's. Money is covered with germs that can make you sick. The germs in a sneeze travel only an arm's length. You may have heard these common sayings or beliefs before. But are they really true? Can they be proven through research? Let's investigate seventeen statements about the microscopic world and find out which ones are right, which ones are wrong, and which ones stump even the experts! Find out whether...

Las hormigas pueden ser de diferentes tamaños y colores, y tienen distintas maneras de prosperar en los lugares donde viven. Y sí que prosperan, y a veces con las adaptaciones más asombrosas. A través de textos apropiados a la edad y fotografías increíbles, los jóvenes lectores descubrirán la maravilla de estas criaturas asombrosas, pequeñas y ubicuas.

"It is time for T. rex and his dinosaur cousins to step aside and let other mega-predators like the terror bird and the giant ripper lizard take the spotlight! Travel back to prehistoric times and meet some of the most impressive creatures to ever roam the Earth. You'll be amazed at the size and the fierceness of these lesser-known predators, many of them ancient ancestors of animals that we still see today. Stewart's cheeky, humorous voice--along...

Did you know that a tiny golf ball-sized creature called the blue-ringed octopus contains enough venom to kill 26 adult humans? Or why the Sydney funnel web spider is one of the most dangerous creatures in the world? In this Level 3 book, kids will be fascinated by 12 species that you hope you'll never come across! Sharks, snakes, jellyfish and more-these creatures are among the most threatening-and interesting-in the world!

Find out what happens when predator is pitted against predator in this exciting, informative reader. The Level 1 text provides accessible, yet wide-ranging, information about some of the world's most amazing creatures for beginning readers.

Superhero and comic book force? Sure, but also a real-life animal! Find out in this Level 3 Reader how fierce wolverines, who are expert survivors, can be even more fantastic than those in movies and graphic novels. Journey through harsh cold and rugged mountain ranges to see how wolverines take down prey, raise their young, and live in one of the world's harshest environments. Learn about how their bodies adapt for survival, and about the animal's...