For over 400million years sharks have been adapting themselves perfectly for life in the ocean. Their varied habitats‚ diets and physiology has meant that for many of them‚ these adaptions have been slightly different. The key adaptions are those that enable the shark to swim‚ breath‚ feed and reproduce. Large squalene filled livers negates the need for a shark to have a swim bladder. The liver‚ up to 25% of the overall body weight‚ counteracts the weight of the dermal denticles‚ teeth and
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essay on shark finning Issues surrounding shark finning can never be over analysed. At first glance shark finning may seem unenchanting‚ however its study is a necessity for any one wishing to intellectually advance beyond their childhood. While it has been acknowledged that it has an important part to play in the development of man‚ spasmodically it returns to create a new passion amongst those who study its history. It is an unfortunate consequence of our civilizations history that shark finning
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Cookiecutter Shark According to Oceana.org the main idea about this subject is how the population grows so much because of no hunting or preying on this shark also how the cookiecutter shark is small but its bites are painful and big for its size. Fact‚ in the article it states “It uses its sharp‚ pointed upper teeth to latch on the skin of a much larger shark‚ bony fish‚ or marine mammal and its thick‚ strong‚ triangular lower teeth to scoop out a mouth-sized chunk of flesh (or blubber).” there
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Mako Shark Mako Sharks are VERY huge! Have you ever seen one in your life? I know I haven’t seen s Mako shark I would be scared to see a Mako Shark. I know that female sharks are longer than male sharks. The females can have up to 8 to 10 pups‚ Sometimes I wonder is that the one reason why they are longer than the male sharks nope it’s not the other reason is that‚ The female’s fin is more curved than the males fin and that how the mom of the pups know if its a boy or a girl Mako Shark. This
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Should we eat sharks’ fins? Shark’s fin soup is a delicacy which is enjoyed by many people around the world‚ especially the Chinese as they believe that it symbolizes wealth‚ honour and respect. However‚ the practice of cutting off sharks’ fins alive and then throwing them back into the sea had caused increasing awareness and ire of animal rights and environment advocates. Statistics have estimated that one hundred million sharks are killed every year‚ not considering the fact that these numbers
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that considered a problem in which sharks face regarding humanity killing off their population. After a thorough analysis‚ the simplistic approach of the advertisement makes it highly effective in informing its viewers that humans have an impact on the ecosystem around them without ever explicitly saying it. Taking a first glimpse at the chosen advertisement‚ it is clear that there are two panels‚ one with a shark fin in the ocean‚ and one without the shark fin. It seems that nothing necessarily
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08/July/2010 Sharks have been in existence for more than 300 million years. Their evolution occurred over 150 million years earlier than that of the dinosaurs. Most of the existing fossil data of early sharks was collected from fossilized teeth together with several skin impressions. primitive sharks (Cladodonts) ‚ had teeth which were double-pointed‚ up to 2metres in length‚ ate fish as well as crustaceans‚ and existed approximately 360 million years ago. The earliest shark-like beings shown
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* The Galapagos shark was named after the islands where the shark was found. The Galapagos shark is a large‚ thin shark. The shark is brownish or grey black and has black sides and a white underside. PICTURE The first dorsal fin shark was tall‚ narrow and almost straight‚ and a low ridge leads to the small‚ second dorsal fin. The trailing edges of the fins may be darker than the rest of the body‚ and the tips may be a dusty colour. The shark is slightly different to most sharks because it has a
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Shark Bay Where is it? Shark Bay is the most westerly point of Australia approximately 800km north of Perth in Western Australia. It has the coordinates of 25°30′ S latitude and 113°30′ E longitude. What is it? Shark Bay is a spectacular World Heritage-listed site which encompasses more than 1500km of coastline stretching along two jagged peninsulas and numerous islands. It covers an area covers more than 2.2 million hectares It’s beautiful natural white sand beaches‚ fiery red cliffs
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Hammerhead Sharks Marine Science/ Per. 1 Sharks are one of the most feared sea animals. They live in oceans across the world but are most common in tropical waters. There are over three hundred fifty species of sharks. They can be broadly categorized into the following four groups: Squalomorphii‚ Squatinomorphii‚ Batoidea‚ and Galeomorphii. The shark family Sphyrnidae that includes the Hammerheads are part of the Galeomorphic classification. They are probably the most easily recognizable
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