Wednesday 18 July 2012

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Tiger shark

Tiger shark
                                 Tiger Shark

Scientific Name - Galeocerdo cuvier

The tiger shark (Galeocerdo cuvier) is one of nature's largest sharks. A mature shark can average 3.25-4.25 meters (10-14 feet) long and weigh 325-425 kilograms (850-1400 pounds). It is found in many tropical and temperate regions of the world's oceans, and is especially common around islands in the central Pacific. The tiger shark hunts alone, usually at night. Its name is derived from the dark stripes down its body, which fade as the shark matures.

Scientific Classification

Order: Carcharhiniformes
Family: Carcharhinidae
Genus: Galeocerdo
Species: cuvier
Scientific Name: Galeocerdo cuvier
Life Expectancy

unknown

Dangerous to Man?

Yes

Conservation Status

Vulnerable

Size

7.4m

Reproduction

The female gives birth to between 10 and 80 pups.

Diet

Fish, turtles, crabs, clams, mammals, sea birds, reptiles and other sharks

Other Names

Speed

2.4mph

Weight

850-1400 pounds


Tiger shark
great white shark
 |The deadliest of all sharks is the Great White Shark. It is the one that has been responsible for the most attacks on humans and the most human deaths. It is also the shark that was featured in the 1970’s hit Jaws that gave people the fear and negativity often associated with sharks today|
great white shark

great white shark

great white shark

great white shark

great white shark
Bull shark wallpaper
                                           |Bull Shark|


Scientific Name - Carcharhinus leucas


The Bull shark (Carcharhinus leucas), also known as the Zambezi River shark or colloquially Zambi, is common in warm, shallow waters along coasts throughout the world. They are known for their unpredictable behavior and uniquely among the marine sharks they have a tolerance for fresh water and can travel up rivers, posing a threat to those who venture into the water. As a result they are probably responsible for the majority of attacks on humans that take place near the shore, including many attacks attributed to other species [1]. They may be found far from the ocean but are not true freshwater sharks (unlike the river sharks of the genus Glyphis).


Scientific Classification


Order: Carcharhiniformes
Family: Carcharhinidae
Genus: Carcharhinus
Species: leucas
Scientific Name: Carcharhinus leucas
Life Expectancy


Dangerous to Man?


Yes


Conservation Status


Near threatened


Size


Up to 3.5m


Reproduction


One to 13 pups


Diet


Mullet, tarpon, catfishes, menhaden, gar, snook, jacks, mackerel, snappers, stingrays and juvenile sharks
Bull shark wallpaper

Bull shark wallpaper

Bull shark wallpaper

Bull shark wallpaper

Bull shark wallpaper
mako shark picture
                                               |Mako Shark|


Scientific Name - Isurus oxyrinchus


The mako sharks are an easily recognizable shark exhibiting all the traits of a Lamnid, they are an extremely robust and streamlined pelagic shark with well developed eyes (larger in the Longfin) and an endothermic circulatory system (warm bloodedness) that is known to maintain elevated muscle temperatures of up to 6°C above the ambient water temperature. Makos are heavily built with the trademark strong caudal keels that are a common feature among Lamnids such as Great Whites, Porbeagles and Salmon sharks.


Scientific Classification


Order: Lamniformes
Family: Lamnidae
Genus: Isurus
Species: oxyrinchus
Scientific Name: Isurus oxyrinchus
Life Expectancy


20 years


Dangerous to Man?


Yes


Conservation Status


Near Threatened


Size


Up to 3.8m


Reproduction


8-10 pups


Diet


swordfish, tunas, other sharks and squid


Other Names


atlantic mako, blue pointer, blue shark, dog shark, mackerel shark, snapper shark


Speed


20 mph


Weight


Up to 570kg|
mako shark picture

mako shark picture

mako shark picture

mako shark picture
Lemon shark pics
 |The lemon Shark is very interesting due to the yellowish colouring it displays that is so different from other species of sharks. However, the reason for it is to provide an amazing type of camouflage for this shark in its natural habitat! Another shark that is named for its coloration is the Blue Shark. This is a large species and they tend to live in groups more often than other species of sharks.
The Goblin Shark features a pinkish type of coloring that is very interesting. These sharks aren’t frequently seen except by divers or when they get caught by commercial fishing boats around Japan. This particular species of shark is one that we still don’t know very much about. It is hard to observe them in their natural environment.
The Nurse Shark is often seen by humans due to the fact that the live in the shallow waters. However, they are nocturnal so you will need to be around at night to see them the most active. They tend to live isolated lives and be very curious.
The Tiger shark is large, aggressive, and a predator that many people know about. When they are young, they have stripes that resemble those of a tiger. As the shark gets older though the stripes start to diminish. They are widely known for their attacks on humans, but very few people have died from an attack from a Tiger Shark|
Lemon shark pics

Lemon shark pics

Lemon shark pics

Lemon shark pics

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