There are over 350 species of sharks, but only 30 are dangerous to humans. The document goes on to describe 13 different shark species, including the gray reef shark, blacktip shark, sand tiger shark, shortfin mako shark, blue shark, great hammerhead shark, oceanic white tip shark, tiger shark, bull shark, and great white shark. It provides details on the appearance, habitat, behaviors and threats to some of these sharks.

2. There are over 350 species
of sharks
Only 30 are dangerous to
people
Which sharks are the deadliest?

3. Gray Reef Shark
•Pacific and Indian Oceans
•6.5 to 8 feet long
•Hunt along outer edge of
reefs and in lagoons

4. Black Tip Shark
•Warm water, especially near the equator
•Up to 6.5 feet in length
•Long, pointed snouts and black markings
along the edges of their fins

5. Sand Tiger Shark
•Bulky body with flat, pointed snout
•48 upper teeth and 46 lower teeth
•Four different species of sand tiger sharks
•Live in Atlantic, Pacific and Indian Oceans

6. This man survived a sand tiger
shark attack. He was lucky not
to lose his leg.

7. Shortfin Mako Shark
•Up to 13 feet long
•Weighs up to 1,200 lbs
•Known as the fastest fish in the sea
•Fishing has reduced it’s number
and threatens the species

8. Blue Shark
•Swim in packs of either all male or all
female sharks
•Live in both warm and cold waters
•Usually stay near the surface of the water,
but have been seen as deep as 500 feet

9. Great
Hammerhead
Shark
•Lives near coral reefs
•Up to 20 feet long
•Swim in shallow water

10. Oceanic White
Tip Shark
•Up to 13 feet long
•Has long pectoral fins that are rounded
and colored white at the end
•Can be either bronze or olive in color

11. Tiger Shark
•Lives in Indian, Pacific & Atlantic coasts
•15 to 25 feet long
•Lose their color & stripes as they age
•Jaws strong enough to crack a turtle shell

12. Losing her arm to a tiger shark
doesn’t stop Bethany Hamilton from
surfing.

13. Bull Shark
•10 feet long
•Only shark able to live in either fresh
or salt water
•Broad, triangular teeth like saw blades
•Some experts say it’s the most dangerous

14. •Lives about 40 years
•Swims near surface
along coastlines & reefs
•More than 20 feet long
•Largest meat-eating
shark in the ocean

15. National Geographic video
http://www.youtube.com/watch?
v=O2FInaOCq