Sharks Shy Ocean Anatomy of a Shark Sharks belong to a family called Chondrichthyes. The members all have cartilage rather than bones. Cartilage not Bones Cartilage is lighter than bones and helps the shark to float. Sharks Comes in all Sizes Whale Shark Dwarf Dog Shark 6.5 in to 59 ft. Mermaid Purses? Shark egg sacs Lemon Shark FICTION Lemon Shark Or FACT? Great Whites Ocean Acrobats Tiger Sharks Garbage Cans of the Ocean They eat anything they can and help keep the ocean clean The Real Jaws Meet the bull shark Bull Sharks in Fresh Water? Bull sharks can live in both the sea and fresh water. They have been found in the Amazon, Ganges, Mississippi and Australian rivers. Goblin Sharks Found only in deep waters, are extremely rare, live on fish and octopus, grow to apprx. 10 ft. Human Influence Each year over 30 to 100 million shark are killed by nets, for food or for sport. Shark Delicacy’s Research Researchers combine shark cartilage and cow collagen to make sheet to place over a burn victim’s skin. The patient’s cells invade, absorb and replace the sheet with new human skin. Protection Great whites are now protected along the coast of California, Australia, South Africa and the Maldives. Wildlife Conservation Society has begun a tagging program.