This document provides an introduction to sharks, discussing what they are, where they live, what they eat, their anatomy, different types of sharks, a video of sharks, and some fun facts. Sharks have cartilage skeletons instead of bones and can be found in every ocean as well as some rivers and lakes. They prey on fish, rays, seals, and other marine animals. The document outlines several types of sharks and includes a diagram of a shark's anatomy. It concludes with some interesting shark facts, such as that the Swell Shark barks and shark skin can be used to make durable leather goods.