Sharks

Sharks are a kind of fish that live in every ocean around the world. 
Teeth of a giant shark that lived millions of years ago.
Scientists think that sharks lived  million years before the dinosaurs. That is a long time ago! 
There are many different types of sharks. See if you can tell which shark is a hammerhead shark, which is a tiger shark and which is a great white shark. 
Sharks come in all different sizes. The whale shark is the biggest fish in the world. It can grow to be  feet long. 
Other sharks can be small, like this little leopard shark. The smallest sharks are only seven inches long. 
Some sharks are born live but others hatch from an egg case, like the one in this picture.
Can you see its head, tail and fins?


Baby sharks are called pups. A mother shark doesn’t take care of her babies after they are born, they have to take care of themselves. 
Sharks are deadly predators, which means that they hunt and eat other animals like fish, seals and even other sharks.
Great white sharks eat five hundred pounds of meat every day! 
Sharks catch their prey with their sharp teeth. When sharks lose teeth, new ones grow. They have at least four layers of pointy teeth. 
Sharks have a good sense of smell and can follow the smell of blood from up to a mile away.
Sharks can see about as well as people. They hear sounds underwater from miles away. 
The only animals that hunt sharks are other sharks and people. People catch sharks for food like the shark steaks in this picture. 
The best place to see a shark is at an aquarium. You might even be able to pet one!
