Sharks

1
Sharks

• Shy Ocean Creatures?

2
Anatomy of a Shark

• Sharks belong to a family called Chondrichthyes.
  The members all have cartilage
• rather than
• bones.

3
Cartilage not Bones

• Cartilage is lighter than bones and helps the
  shark to float.

4
Sharks Comes in all Sizes

• Whale Shark
• Dwarf Dog Shark
• 6.5 in
• to 59 ft.

5
Mermaid Purses?

• Shark egg sacs

6
Lemon Shark

• FICTION

7
Lemon Shark

• Or FACT?

8
Great Whites

• Ocean Acrobats

9
Tiger Sharks

• Garbage Cans of the Ocean
• They eat anything they can and help keep
• the ocean clean

10
The Real Jaws

• Meet the bull shark

11
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.

12
Goblin Sharks

• Found only in deep waters, are extremely
• rare, live on
• fish and
• octopus,
• grow to
• apprx. 10 ft.

13
Human Influence

• Each year over 30 to 100 million shark are killed
  by nets, for food or for sport.

14
Shark Delicacys
15
Research

• Researchers combine shark cartilage and
• cow collagen to make sheet to place over
• a burn victims skin. The patients cells
• invade, absorb
• and replace the
• sheet with new
• human skin.

16
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.