- The number of Americans that are killed by sharks averages about one per year
- More people die from eating sharks then from being eaten by them
- In July 1978 Walter Poenisch swam from Cuba - an island in the Caribbean Sea to Florida in the United States. The waters are so dangerous he swam inside a shark cage and took just over 34 hours to complete the 207km (129mile) journey
- Bruce was the nickname of the mechanical shark used in the "Jaws" movies
- As many as 100 million sharks are killed each year for their meat and fins, which are used for shark fin soup
- The megalodon shark became extinct about 1.6 million years ago and was double the size and weight of today's great white shark
- A mother shark can give birth to as many as 70 baby per litter
- The first sharks lived more than 400 million years ago—200 million years before the first dinosaurs. They have changed very little over the eons
- Sharks belong to a group of fish known as the elasmobranchs, or cartilaginous fishes. Rays and skates, which may have evolved from sharks, also belong to this group
- Because sharks very rarely get cancer, scientists study their cartilage in the hopes of finding a cure for the disease
- Hammerhead sharks’ heads are soft at birth so they won’t jam the mothers' birth canals
