At the sight of danger, puffer fish blow up! Their bodies become like balloons. Their plump lips and oversize eyes, usually exaggerated, look more proportionate for a time. The goal is to use size to intimidate. Fascinating content in this title will suck young readers in.

Manatees are true gentle giants. Though many weigh more than 1,000 pounds, they do not use their size to overpower other sea creatures. They spend a lot of their time peacefully eating underwater grasses. Young students will close this title understanding how the manatee earned its "sea cow" nickname.

Not all seals measure up to one another. The ringed seal, for example, is four times shorter and more than fifty times lighter than the elephant seal! This elementary title puts on display the common features that make seals of all sizes alike.

Shaped like torpedoes, Great white sharks can launch out of the water to catch prey. Named after their white bellies, these sharks easily blend in with the sun when seen from below. In addition to their coloring, these sharks have serrated teeth for tearing. They are made to hunt! In this exciting title, learn more about great white sharks and why they are one of the top predators in the ocean.

In Rain Forest Food Chains, early fluent readers explore the rain forest biome and the food chains it supports. Vibrant, full-color photos and carefully leveled text engage young readers as they explore how energy flows through plants and animals in a wet and wooded environment. A map helps readers locate rain forests around the world, and an activity offers kids an opportunity to extend discovery. Children can learn more about rain forest food chains...

Burrowing deep under the snow, collared lemmings use their shovel-like claws to create a secret world of tunnels hidden from predators. These small rodents put on their white winter coat each fall to blend in with their snowy home. Early readers will love digging through the pages of this fun, fact-filled read about the adaptations of collared lemmings.

Arctic foxes are master hunters of the north! These small predators use their keen sense of hearing to listen for the rustlings of lemmings under the snow. Then, they leap to break through the layers of white to snatch their prey! This title walks readers through the fascinating adaptations Arctic foxes have developed to survive this harsh biome.

Polar bears are built for subzero temperatures! With black skin to absorb the sun's rays, two layers of thick fur to trap heat, and blubber lying under their skin, these bears are ready to take on any cold weather. Discover the many special adaptations of polar bears in this title about their lives in the Arctic!

In Zoo, emergent readers join a group of students as they enjoy a trip to the zoo. Vibrant, full-color photos and carefully leveled text engage young readers as they learn about the exotic wildlife the zoo contains. A labeled diagram introduces some of the zoo's most popular residents, while a picture glossary reinforces new vocabulary. Children can learn more about the zoo and its animals using our safe search engine that provides relevant, age-appropriate...

Angel sharks glide along the sea bottom using their flat, winglike fins. When they find the right spot, they wiggle under the sand to wait for their next meal to swim by! In this book, young readers will explore the world of angel sharks, their physical f