HabitatHabitat

• Live in estuariesLive in estuaries

• A freshwater habitat A freshwater habitat like the bull shark.like the bull shark.

• Live in all the world’s Live in all the world’s oceansoceans

• some sharks prefer some sharks prefer colder waterscolder waters

• some sharks prefer some sharks prefer warmer waters warmer waters

Sharks live in the ocean.

Symbiotic RelationshipsSymbiotic Relationships

• The remora and the shark The remora and the shark have a commensalism have a commensalism relationship. relationship.

• A commensalism A commensalism relationship is when one relationship is when one animal benefits and the animal benefits and the other isn’t harmed or hurt.other isn’t harmed or hurt.

• The remora and the shark The remora and the shark have a commensalism have a commensalism relationship because the relationship because the remora attaches to the remora attaches to the shark and feeds off of the shark and feeds off of the prey the shark catches.prey the shark catches.

The remora attaches to the shark to get left over scraps.

Food WebFood Web

• Prefer certain foodsPrefer certain foods• Eat fish, sea lions and Eat fish, sea lions and

seals.seals.• Tiger sharks eat boat Tiger sharks eat boat

cushions, tin cans, wood, cushions, tin cans, wood, water bottles, pieces of water bottles, pieces of metal and practically metal and practically anything left in the ocean.anything left in the ocean.

• Sharks eat baby whales Sharks eat baby whales but they can not eat adult but they can not eat adult whales.whales.

• The whale shark can eat The whale shark can eat adult sharks.adult sharks. Seals are in the shark’s diet.

Structural AdaptationsStructural Adaptations

• Sharks have six senses, yes I said six!Sharks have six senses, yes I said six!• Sharks have all the senses you do but the six Sharks have all the senses you do but the six

sense is that they can tell when a wounded sense is that they can tell when a wounded animal is in the area!animal is in the area!

• These six senses help the sharks survive because These six senses help the sharks survive because they have the advantage because of the sixth they have the advantage because of the sixth sense.sense.

• Sharks have a tapetum lucidum which helps them Sharks have a tapetum lucidum which helps them see at the bottom of the ocean.see at the bottom of the ocean.

• You might think that the tapetum lucidum doesn’t You might think that the tapetum lucidum doesn’t help the sharks that much but it does because it help the sharks that much but it does because it is really hard to see at the bottom of the ocean.is really hard to see at the bottom of the ocean.

General Facts and KnowledgeGeneral Facts and Knowledge

• capable of pressure per tooth when they bite or attackcapable of pressure per tooth when they bite or attack• large part of the brain is connected to smell.large part of the brain is connected to smell.• hammerheads use their wide heads to attack and they can see if a hammerheads use their wide heads to attack and they can see if a

predator is coming from the side to attack.predator is coming from the side to attack.• Lifespan= 50 yearsLifespan= 50 years• the swell there are at least 400 sharksthe swell there are at least 400 sharks• sharks travel really fast sharks travel really fast • a group of sharks is called a school a group of sharks is called a school • the swell shark is one of the smallest sharks because it is 3 feet.the swell shark is one of the smallest sharks because it is 3 feet.

To be To be

continued……..continued……..

General Facts and Knowledge General Facts and Knowledge {cont.}{cont.}

• the great white shark is the largest predatory fish the great white shark is the largest predatory fish on earth on earth

• Harmless sharks are usually the largest such as Harmless sharks are usually the largest such as the whale sharkthe whale shark

• The tiger shark has spots on its back.The tiger shark has spots on its back.• Nurse sharks lay on the bottom of the ocean so Nurse sharks lay on the bottom of the ocean so

they can find food.they can find food.• The great white shark weighs about 5,000 The great white shark weighs about 5,000

pounds.pounds.• The great white shark gets its name from it’s The great white shark gets its name from it’s

white underbelly.white underbelly.• The Port Jackson shark can be up to 10 feet.The Port Jackson shark can be up to 10 feet.

Effects of Humans on Effects of Humans on EcosystemEcosystem

• Humans have effected the ecosystem for Humans have effected the ecosystem for sharks because people have been littering in sharks because people have been littering in the ocean. the ocean.

• This effects them because you can’t live in This effects them because you can’t live in polluted waters. People kill at least one polluted waters. People kill at least one million sharks a year! million sharks a year!

• Humans are the biggest threat to sharks Humans are the biggest threat to sharks obviously so we need to stop killing sharks obviously so we need to stop killing sharks because a lot of sharks are endangered.because a lot of sharks are endangered.

• However the Bull shark isn’t endangered However the Bull shark isn’t endangered right now.right now.

Sharks Attacks in 2005-Sharks Attacks in 2005-20082008

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2005 2006 2007 2008

Shark Attacks3-D Column 23-D Column 3

Plan of ActionPlan of Action

To help save the sharks…………To help save the sharks…………

• don’t eat shark fin soup so people will don’t eat shark fin soup so people will stop hunting themstop hunting them

• stop buying shark productsstop buying shark products

• dive and snorkel with sharksdive and snorkel with sharks

To be continued……. To be continued…….

Plan of Action {cont.}Plan of Action {cont.}

• don’t litter in the ocean so you won’t don’t litter in the ocean so you won’t have sharks dead in polluted waters.have sharks dead in polluted waters.

• humans are the biggest threat to humans are the biggest threat to sharks and we need to try and stop sharks and we need to try and stop that.that.

• humans hunt sharks and there is humans hunt sharks and there is some laws about hunting sharks.some laws about hunting sharks.

Bibliography Bibliography

• http://www.chacha.com/question/what-is-the-symbiotic-relationship-between-the-ramora-and-the-shark

• http://www.sciencedaily.com/releases/2007/03/070329145922.htm

• http://animals.nationalgeographic.com/animals/fish/great-white-shark.html

• http://www.sharksavers.org/get-involved/ways-you-can-help-save-sharks.html

• http://animals.nationalgeographic.com/animals/fish/hammerhead-shark.html

• http://animals.nationalgeographic.com/animals/fish/whale-shark.html

• http://www.ftexploring.com/me/pyramid.html