Hofer, Charles

"The world is full of furry, cuddly-looking animals. They often seem harmless at first glance. But don't try to snuggle with these . . . creatures. Many of them can be very dangerous. Some have razor-sharp claws and teeth. Others are incredibly strong. Still others are poisonous or carry deadly diseases"--Provided by publisher.

"With big eyes and ears and colorful bodies, a lot of creatures in nature look very cute. But don't be fooled by their . . . appearance. When provoked, these animals can easily injure or kill a person. Their defense mechanisms like poison and sharp teeth and claws can turn them from darling to deadly"--Provided by publisher.

Looks at the Earth's biosphere, discussing different biomes, climage change, how humans influence the Earth's biosphere and more.

Readers will learn how people affect the biosphere and how life and energy are maintained in the biosphere.

Explains what floods are, how and where they occur, and looks at flood safety tips.

"At their peak, the ancient Maya lived in one of the most advanced civilizations in the world. Their calendar system, celestial observations, and architecture give us clues to the greatness of their technology. This book introduces readers to the many unique technological devices and breakthroughs created by the ancient Maya"--Amazon.com.

At their peak, the ancient Maya lived in one of the most advanced civilizations in the world. Their calendar system, celestial observations, and architecture give us clues to the greatness of their technology. This book introduces readers to the many unique technological devices and breakthroughs created by the ancient Maya.

Explains how irrigation systems work, discussing the science and technology involved.