The skeletal system includes all the bones in the body. With engaging text, fun facts, and infographics, learn how the body's 200 bones fit together to make up the skeleton.
More than 9 million horses frolic in pastures around the United States. We ride them, use them to pull carriages, and do work on ranches. But do we really understand why horses behave the way they do?
People own more than 80 million dogs in the United States. They live side by side with people every day. But do we really understand why dogs behave the way they do? Give young readers a look at what
Geckos are known for their soft scales and sticky feet. But there's more to these small reptiles. Readers will discover all the details about these radical reptiles, including their life cycles, diet,
The muscular system is the movement control center of the body. With engaging text, fun facts, and infographics, learn how muscles are responsible for walking, talking, and even breathing.
Komodo dragons are big and strong, and they have a weapon of deadly venom. But there is more to this reptile than its frightening features. Readers will discover all the details about these large liza
Geckos are known for their soft scales and sticky feet. But there's more to these small reptiles. Give readers an up-close look at these radical reptiles. High-impact photos, fact boxes, range maps an
Chameleons are known for their ability to change colors. But there's more to this reptile than its tactful talent. Give readers an up-close look at these radiant reptiles. High-impact photos, fact box
The nervous system is the communication control center of the body. With engaging text, fun facts, and infographics, learn how messages go through the nervous system from the busy brain to ticklish to
The digestive system is the nutrient control center of the body. With engaging text, fun facts, and infographics, learn how the digestive system is responsible for breaking down food and getting the b
The circulatory system is the heart of the body. With engaging text, fun facts, and infographics, learn how the circulatory system is responsible for pumping blood and nutrients throughout the body.
The respiratory system is the breathing control center of the body. With engaging text, fun facts, and infographics, learn how oxygen goes from lungs to cells to keep humans alive.
Presents a basic introduction to the body's skeletal system, including how the bones fit together to support the body and give it shape, what the bones are made of, and how to keep bones healthy.
Gila monsters are known for their bead-like scales and thick tails. But there's more to these reptiles than their pink, orange, and black bodies. Readers will discover all the details about these roug
They slink. They slither. They may even stare with unblinking eyes. Reptiles send shivers up some people's spines. But reptiles might be the most misunderstood pets around. Invite young readers to tak
From their pointed ears to their long tails, we love cats! Cats are so popular that almost 1 in 3 U.S. households has one. But do we really understand why cats behave the way they do? Give young reade
Gila monsters are known for their bead-like scales and thick tails. But there's more to these reptiles than their pink, orange, and black bodies. Readers will discover all the details about these roug
Chameleons are known for their ability to change colors. But there's more to these reptiles than this tactful talent. Readers will discover all the details about these radiant reptiles, including thei
The muscular system is the movement control center of the body. With engaging text, fun facts, and infographics, learn how muscles are responsible for walking, talking, and even breathing.
The nervous system is the communication control center of the body. With engaging text, fun facts, and infographics, learn how messages go through the nervous system from the busy brain to ticklish to
