1. Sharks

16. Great White Shark Information TEETH TO SPARE A great white loses and replaces thousands of its teeth during its lifetime. Its upper jaw is lined with 26 front-row teeth; its lower jaw has 24. Behind these razor-sharp points are many rows of replacement teeth. The “spares” move to the front whenever the shark loses a tooth. At any one time about one-third of a shark’s teeth are in the replacement stage. HEADS UP Great whites are the only sharks that can hold their heads up out of the water. This ability allows them to look for potential prey at the surface. Great white sharks usually attack from underneath, surprising their unwary prey

18. A pregnant female great white shark can carry as many as 14 babies in her belly. At birth, a 5-foot-long (1.52-meter), 60-pound (22-kilogram) pup looks and acts like a miniature adult. Great whites average between 10 and 15 feet (3 and 4.6 meters) long. Females tend to be bigger than males. The longest confirmed great white shark measured 19.5 feet (5.9 meters). Male or female, they’re the world’s largest meat-eating fish. A great white shark isn’t all white. A pale belly and dark charcoal-gray back help the shark avoid detection by prey. Viewed from above, the shark’s dark-colored back blends with the murky seafloor. From below, the shark’s belly matches the light-colored surface. Sneaky! BIG MAMA & SNEAK ATTACK

19. “ Man-eaters?” Maybe not. Some scientists believe that great white sharks are better described as “man-biters.” In more than half of all known great white attacks on swimmers, sharks have taken only a single bite before swimming away. Scientists speculate that perhaps people just don’t taste as good as seals or sea lions! NOT ON THE REGULAR MENU

21. This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.