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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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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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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Dog Fish Shark Dogfish sharks are the second largest sharks‚ there body shape is rounded. Dogfish sharks have a variety of different parts. Smell‚ taste‚ hearing‚ sight‚ touch‚ and electroreception are six sensory systems that sharks use. All of there senses allow them to explore the environment and survive. There senses help them locate prey‚ avoid danger‚ and also find mates. Sharks nostrils or nares are under the edge of there snout. There nares are separate from there mouth and throat‚ they
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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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The goblin shark has a distinctively long and flat snout‚ resembling a sword blade. The proportional length of the snout decreases with age.[17] The eyes are small and lack protective nictitating membranes; behind the eyes are spiracles. The large mouth is parabolic in shape. The jaws are highly protrusible and can be extended almost to the end of the snout‚ though normally they are held flush against the underside of the head. There are 35–53 upper and 31–62 lower tooth rows. The teeth in the main
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secure these loans which often turn into a night mare or even trade death. Often the borrowers do not realize the very high interest rates charged. The Malaysian Crime Prevention Foundation (MCPF) hosted a brain storming session on the issue of loan sharks and what needs to be done in addressing this problem. About 13 people gathered on July 12‚ 2006 at the MCPF Conference room. Datuk Dr Denison Jayasooria chaired the meeting. Tun Hanif Omar the former Inspector General of Police was present and he
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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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* 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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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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