Publisher's Synopsis
When looking for a fact book to share with your child, you'll want to find one about sharks. This book explores the fascinating world of these predatory creatures. And it's also a great introduction to sharks for young people who don't know much about them.First, sharks do not have bones. Instead, they rely on gills to filter water and food. They are classified as "elasmobranch" fish, which means that they don't have true bones. Their bodies are made up of cartilaginous tissues that look like cartilage, but weigh a fraction of what a true bone does. Furthermore, sharks have large livers full of low-density oils that help them digest food. In addition to their remarkable spiracle, sharks have excellent eyesight and hearing. They can pick up electrical impulses and the heartbeats of other animals. Although they are ocean dwellers, sharks are opportunistic feeders and rarely build homes. While they may be small and solitary, sharks are highly intelligent and have some very interesting habits. They live alone, and are one of the most studied animals in the world.
