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Slide 2 Hunters Of The Deep By: Matt Christensen 4 th grade Fruitland Intermediate School Slide 3 There is plenty to learn about sharks; welcome to the watery world of sharks! Slide 4 Introduction Sharks are fierce predators. You may think they are mindless killers, but they are fascinating creatures. Read on to learn about the watery world of sharks! The great white shark, shown to the right, is one of many sharks in todays oceans. Sharks, great and small, they are everywhere. By the end, you will be a shark expert! Sharks are fierce predators. You may think they are mindless killers, but they are fascinating creatures. Read on to learn about the watery world of sharks! The great white shark, shown to the right, is one of many sharks in todays oceans. Sharks, great and small, they are everywhere. By the end, you will be a shark expert! A great white shark in its natural habitat. Slide 5 The Sharks Body A shark is a fish. Like most fish, sharks breathe through gills. A fish has one gill on each side, but a shark can have five, six, or even seven gills on each side! A fish has an air bladder to float, but a shark has an oil filled liver to float. To the right, is a reef sharks anatomy. A shark has four heart chambers. A shark has a dorsal fin, pectoral fins, second dorsal fin, pelvic fins, anal fin, and caudal fin. A shark is a fish. Like most fish, sharks breathe through gills. A fish has one gill on each side, but a shark can have five, six, or even seven gills on each side! A fish has an air bladder to float, but a shark has an oil filled liver to float. To the right, is a reef sharks anatomy. A shark has four heart chambers. A shark has a dorsal fin, pectoral fins, second dorsal fin, pelvic fins, anal fin, and caudal fin. A reef sharks anatomy. Slide 6 Shark Sizes Sharks come in all shapes and sizes. The whale shark is the biggest. The pigmy shark is the smallest. Look at the diagram on the next slide to see the difference in their sizes. The whale shark is the biggest. The basking shark is the second biggest. The great white shark is the fiercest. The megamouth shark is the most recently discovered. The pigmy shark is the smallest. Sharks come in all shapes and sizes. The whale shark is the biggest. The pigmy shark is the smallest. Look at the diagram on the next slide to see the difference in their sizes. The whale shark is the biggest. The basking shark is the second biggest. The great white shark is the fiercest. The megamouth shark is the most recently discovered. The pigmy shark is the smallest. Slide 7 Slide 8 There are plenty of sharks, read on to learn about some of the shark species! Slide 9 Ancient Sharks Sharks are some of the oldest living things living today. Sharks are four hundred million years old! The megalodon, an ancient shark is the biggest shark ever known. It could be sixty feet long! The cladaselache is thought to be the first shark. The stethacanthus has prickly denticles, or rough skin on sharks, was on the head of this strange creature. cladoselache stethacanthus Slide 10 Megalodon Shark Pictures Fake Megalodon picture Megalodon tooth Megalodon Slide 11 Great White Sharks The great white shark is part of the top three deadliest sharks, with the tiger shark and bull shark. Most people think of this shark as a man eater. The truth is that they are like any other shark, like a hammerhead shark or blue shark. A great white sharks diet are seals, sea lions, and dolphins. Some scientists think that bull or mako sharks cause attacks that great whites are blamed for. The great white shark is part of the top three deadliest sharks, with the tiger shark and bull shark. Most people think of this shark as a man eater. The truth is that they are like any other shark, like a hammerhead shark or blue shark. A great white sharks diet are seals, sea lions, and dolphins. Some scientists think that bull or mako sharks cause attacks that great whites are blamed for. A great white shark making the kill. Slide 12 Hammerhead sharks Hammerhead sharks are named after their very wide heads. On each end is and eye, great for vision. The shark swings its head from side to side. This helps it steer and see. There are nine types of hammerhead species(not enough room to put all names). The great hammerhead is the biggest, up to twenty feet long. The smallest is the bonnethead shark, only up to four feet long. Most hammerhead species are endangered from shark fin soup. Hammerhead sharks are named after their very wide heads. On each end is and eye, great for vision. The shark swings its head from side to side. This helps it steer and see. There are nine types of hammerhead species(not enough room to put all names). The great hammerhead is the biggest, up to twenty feet long. The smallest is the bonnethead shark, only up to four feet long. Most hammerhead species are endangered from shark fin soup. Scalloped hammerhead shark. Slide 13 Whale Sharks The whale shark is the biggest modern shark, up to forty six feet long. The whale shark On the right, is a juvenile, or young. Whale sharks eat krill, plankton, small fish, and fish eggs. They are filter feeders, like The basking shark and megamouth shark. If it swallows a diver, it will just spit it out. The whale shark is the biggest modern shark, up to forty six feet long. The whale shark On the right, is a juvenile, or young. Whale sharks eat krill, plankton, small fish, and fish eggs. They are filter feeders, like The basking shark and megamouth shark. If it swallows a diver, it will just spit it out. A whale shark swimming above a sea cliff. Slide 14 Reef Sharks Reef sharks are some of the most common sharks in the world, as most of them live in all of the worlds coral reefs. The grey reef shark is suggested the most aggressive. The Caribbean reef shark, shown To the right, like to eat lionfish. The blacktip reef shark has black markings on their fins. Reef sharks are some of the most common sharks in the world, as most of them live in all of the worlds coral reefs. The grey reef shark is suggested the most aggressive. The Caribbean reef shark, shown To the right, like to eat lionfish. The blacktip reef shark has black markings on their fins. Caribbean reef shark hunting a lionfish. Slide 15 Strange Sharks The sharks that you have seen so far are nothing like the sharks you are about to see! Some sharks, like the megamouth shark, are recently discovered or live in very deep water. Some of these sharks are big, while some are tiny. Some live in deep water, while others live in shallow waters. These sharks are nothing like you have seen before, glowing eyes, expanding mouths, or even bites that can have the force of crushing three tons of iron! Slide 16 Strange sharks pictures Megamouth shark Goblin shark Bluntnose sixgill shark Cookiecutter shark Slide 17 Strange Sharks Pictures II Frilled shark Greenland shark Basking shark Wobbegong shark Slide 18 Bottom Feeders As there are so many sharks in the open ocean, there are plenty sharks on the seabed. For example, the nurse shark lives on the bottom of coral reefs, hunting small fish, crabs, and clams. To the right, a wobbegong shark, is a flat shark. It attacks its prey by surprise, waiting motionless, until it snatches it up! As there are so many sharks in the open ocean, there are plenty sharks on the seabed. For example, the nurse shark lives on the bottom of coral reefs, hunting small fish, crabs, and clams. To the right, a wobbegong shark, is a flat shark. It attacks its prey by surprise, waiting motionless, until it snatches it up! Can you find the wobbegong shark in this picture? Slide 19 Bottom Feeders pictures Nurse shark Chained cat shark Angel shark Slide 20 Filter Feeders Unlike most sharks, filter feeders suck in small creatures, the water goes out through the gills, and the small creatures get trapped in the gill rakers, like a net. The whale shark, the biggest shark, eats plankton, fish eggs, and small fish. It lives in tropical waters, near the equator. The basking shark, the second largest shark, eats plankton, algae, and small fish. It lives in temperate water. The megamouth shark, the new shark, eats jellyfish, deep sea shrimp, and krill. It lives in very deep water, so it is rarely seen. Slide 21 Filter Feeders Pictures Whale shark Basking shark Megamouth shark Slide 22 Sharks may be fierce hunters, but in recent rimes, people are killing sharks and harming their population. People are now working to save sharks. Slide 23 Shark Attack! Even though most sharks dont attack very often, occasionally some sharks will share the same waters as humans, and sharks can bite. Most attacks are a mistake, a person lying on a surfboard can look like a seal or a sea turtle to a shark. In movies like Jaws, they portray the shark as a mindless killer. The truth is that people are killing sharks after that movie. Go to the next slide to learn more about sharks being hunted. Even though most sharks dont attack very often, occasionally some sharks will share the same waters as humans, and sharks can bite. Most attacks are a mistake, a person lying on a surfboard can look like a seal or a sea turtle to a shark. In movies like Jaws, they portray the shark as a mindless killer. The truth is that people are killing sharks after that movie. Go to the next slide to learn more about sharks being hunted. Slide 24 Sharks Under Attack? Even though sharks attack people, more than a million sharks are caught each year. In Asia, fishermen catch hundreds of sharks for shark fin soup, a very expensive soup in most countries of Asia. Also, people cut out sharks Jaws for trophies, or even for Sale. Some fishermen will Put the shark in a glass case With liquid acid to keep it From rotting. Even though sharks attack people, more than a million sharks are caught each year. In Asia, fishermen catch hundreds of sharks for shark fin soup, a very expensive soup in most countries of Asia. Also, people cut out sharks Jaws for trophies, or even for Sale. Some fishermen will Put the shark in a glass case With liquid acid to keep it From rotting. Abused dead great white shark. Slide 25 Studying Sharks Lots of people disagree with the fact that sharks should be killed, so lots of people are setting to be studying sharks. A popular way to study Sharks is to use satellite tags On sharks. You put them on a shark by putting it on a spear and when the time is right, hook it on the sharks dorsal fin. You can also see sharks by visiting an aquarium. You can also swim with sharks and go in shark cages, useful with big sharks, like the great white shark. Lots of people disagree with the fact that sharks should be killed, so lots of people are setting to be studying sharks. A popular way to study Sharks is to use satellite tags On sharks. You put them on a shark by putting it on a spear and when the time is right, hook it on the sharks dorsal fin. You can also see sharks by visiting an aquarium. You can also swim with sharks and go in shark cages, useful with big sharks, like the great white shark. A basking shark being hooked by a satellite tag. Slide 26 Fun Facts The megamouth shark was found in 1976. The thresher sharks tail is half the length of its body. The mako shark can swim sixty eight mph. The basking shark is hunted for its huge liver. A whale shark can have up to three hundred babies. The tiger shark can eat anything, plastic bags, cans, or even tires. Shark hunting started in the 1920s. The samebito shark myth is of a half human half shark. The megamouth shark was found in 1976. The thresher sharks tail is half the length of its body. The mako shark can swim sixty eight mph. The basking shark is hunted for its huge liver. A whale shark can have up to three hundred babies. The tiger shark can eat anything, plastic bags, cans, or even tires. Shark hunting started in the 1920s. The samebito shark myth is of a half human half shark. Slide 27 I hope you had fun reading this powerpoint! Now you are a shark expert! Slide 28 Bibliography Burnie, D. (2013). Sharks. New York: Scholastic Inc. Sheikh-Miller, J. (2000). Sharks. London: Usborne Publishing Star, F. (2009). Shark. New York: DK Publishing Burnie, D. (2013). Sharks. New York: Scholastic Inc. Sheikh-Miller, J. (2000). Sharks. London: Usborne Publishing Star, F. (2009). Shark. New York: DK Publishing