Sunday, February 29, 2004
The Migrations Of Some Water Dwellers
Alot of animals migrate or are constantly moving,
Water dwellers are no different, they also have migratory patterns
and migrate following pretty much the same course every year or few years
depending on the reason they are on the move.
Most water dwelling animals Migrate due to weather conditions,
food resources, tidal conditions or for breeding purposes.
Juvenile salmon memorize the odor of the stream
in which they were born.
Years later they use this knowledge to navigate
from the ocean back to the mouth of their home river;
they then follow its distinctive odor upstream.
The American golden plover travels about 8,000 miles
from nesting areas in the Arctic
to the southern tip of South America--
one of the longest migrations known.
The trip includes about 2,000 miles over open ocean.
Freshwater eels spend most of their lives in North American
and British lakes and rivers,
but to reproduce they swim from each side of the Atlantic
to an area of the Sargasso Sea between Bermuda and Puerto Rico.
Land barriers are no problem:
The eels just slither overland through dewy grass.
After breeding, they return to their freshwater homes.
Each year thousands of female green turtles swim more
than 1,000 miles from the coast of Brazil to
tiny Ascension Island in the South Atlantic Ocean.
There they haul themselves onto the sandy beaches,
scrape out shallow nests, and deposit their eggs.
Then they swim back to Brazil.
Each year, the spiny lobster makes an astounding migration.
Individual lobsters join large numbers of others to march
single file across the ocean's floor.
Scientists don't fully understand why the spiny lobsters do this,
but it is believed to have something to do with their reproductive
Known for their sharp teeth and insatiable appetites,
bluefish migrate in dense packs each spring,
preying on other fish that come inshore to spawn.
Bluefish often leave a trail of blood for miles as
they consume other fish in a feeding frenzy.
In autumn whales move from subpolar to subtropical seas to reproduce,
returning to colder, food-rich waters in late spring.
They may be guided by a magnetic substance (called magnetite)
in their brains that functions as a magnetic compass.
Posted at 08:52 pm by NN Team
Friday, February 20, 2004
These creatures thrive 1.5 miles below the sea surface near a hydrothermal fissure in the ocean's floor, where temperatures exceed 600 degrees F. These "sea vent" inhabitants were captured on film with a Woods Hole Oceanographic Institution high definition underwater imaging system from the Deep Submergence Vehicle Alvin
. The vent is in the Pacific about 1,000 miles south of San Diego, Calif.
Some acorn worms swim freely near the ocean bottom
and feed on floating particles of organic matter.
This zoarcid fish drifts slowly by an active hydrothermal chimney,
which spews a boiling mix of water and chemicals.
Like most vent fish, it is long and flat,
with a single long fin running the length of its spine.
The sightless brachyuran crab is constantly prowling around tubeworm patches,
feeling for its next meal.
Riftia Tube Worms
tube worms thrive near a sea vent,
even as they are being colonize by equally healthy mussels.
Larvae attach themselves to the lava near vents then build long,
white tubes as they grow.
Each tube absorbs sulfurous water that a sac of bacteria inside the worm
uses to generate energy and food for the worm.
A vent shrimp, Alvinocaris lusca
stands perched upon the edges of a tube worm tube.
This octopus is similar to shallow-water species,
but adapted to the extreme pressures of the deep.
These cephalopods are top carnivores in the vent realm:
their tentacles and beaks can handle most prey.
serpulid worms help define the surreal environment around the vent.
The deep-sea "Dumbo" octopus got its nickname from obvious places,
but the benthic cephalopod Grimpoteuthis
is equipped with large fins
(which may resemble mammalian ears) to help it swim.
Tube anemones of the genus Cerianthus
attach themselves to the sea floor and capture food with their tentacles.
Although most are found in shallow waters, this species thrives 1.5 miles below the surface.
Doesn't this all make you wonder whats hanging out at other particular vents within our worlds, like volcano steam vents, or geyser vents, car vents, air conditoner vents, roof vents and so on.
Photo's and some information courtesy of blueplanet.com
Posted at 09:42 pm by NN Team
Tuesday, February 17, 2004
With all the Finding Nemo hullabaloo and so on of late, its only ironic that children have become more involved in learning about our sealife. First the movie was released in cinemas then onto dvd, talk of a sequel is rumored to already be in the pixar works and the ocean life are swimming with the tides waiting for their role calls!
Interestingly enough the simple fact that nemo opened children again to the wonderment of our sea life and vast oceans it has also brought on another trend in adult information related tv with more shows appearing about the wonderment of our vast oceans and the life within its tidal beings.
As our title suggests, is it true, fact not fiction, reality not fantasy, truth not myth that certain sea life are able to change their birth sex into the opposing sex (male to female) as they develope and mature into adults.
The answer is YES, indeed they do have this natural ability and they are the true transexuals of the ocean floors, coral walls, and gogo sand bars between the inner sanctums and beyond of both the artic and the anartic cirlces.
"go priscilla go!"
In reality it is the truth and these wonderful and amazing species of sea life prove to the world that it is possible to be different, yet amazing, beautiful, intelligent and even be able to belong into the world in which you are born, tis a shame some of the more human species haven't had the ability to learn from such simple but spectacular creatures on this earth such as "clownfish"
~ The facts ~
The study began with Species switch sex at a specific size:
Species that automatically change sex do so when they reach nearly three-quarters of their maximum size, neatly proving a cornerstone of evolutionary theory, scientists said.
Dozens of animal species, from types of fish and crustaceans to mollusks and worms, spontaneously change sex as a result of the pressures for survival and reproduction.
In the case of the clownfish, a favorite of aquarium-lovers, the gender bending is taken to extremes — males can not only switch to female, but also increase in size to become the alpha-breeder in their piscatorial group.
Biologists David Allsop and Stuart West of Edinburgh University in Scotland studied 77 sex-changing species, ranging from a tiny shrimp, the Thor manningi, to a 1.5-meter (5-foot) fish called a black grouper.
They found that the creatures swapped gender when they reached 72 percent of maximum size, regardless of mating system, sex-change mechanism and other factors.
"This suggests that there is a fundamental similarity across all animals ... in the underlying forces that select for sex change," they wrote in Thursday's issue of Nature, the British weekly science journal.
Under evolutionary theory, an individual is at most pressure to change gender when there is a serious imbalance between the sexes and it has reached an age and size where it can do the switch successfully and contribute quickly to the gene pool.
~ The Clown Fish Factoids ~
Name: Clown Anemonefish (species)
Primary Classification: Acanthopterygii (Spiny-Rayed Fishes)
Location: Northern Queensland to Melanesia.
Habitat: Sea anemones.
Diet: Mainly zooplankton. Possibly algae.
Size: Up to 3.1 inches in length.
Description: Bright orange body with three white, vertical bars bordered in black; middle bar has rounded bulge; 10 dorsal-fin spines;
Cool Facts: It forms a symbiotic relationship with a host anemone; through contact with the anenome's tentacles, it acquires a mucous coat, which protects it from being stung.
Conservation Status: No special status.
Male clownfish can switch to female and also increase in size to become the alpha-breeder of their group. Scientists at Edinburgh University in Scotland have found that sex-changing animals swap gender when they reach 72 percent of maximum size. Male Today..... Female Tomorrow!
Posted at 07:22 pm by NN Team
Sunday, February 15, 2004
I've been away and now I'm back
expect new updates soon.
Posted at 01:18 am by NN Team
Sunday, September 14, 2003
WHAT R THE ODDS?
It's difficult, in the wake of recent years' news stories about shark attacks, not to hear that telltale theme song
in your head as you head to the beach.
But according to the International Shark Attack File, in 2002, for example,
there were only 63 unprovoked shark attacks on humans, 47 of which occurred in the United States.
Forty-seven attacks out of a population of about 300 million.
This means the odds of being attacked by a shark in the United States are roughly 1 in 6 million.
you're more likely to die from a fall down the stairs than be attacked by a shark.
According to the National Safety Council, your odds of dying from a fall down the stairs are about 1 in 200,000.
you're more likely to die from a sting from a hornet,
wasp or bee than be attacked by a shark.
According to the National Safety Council,
your odds of dying from a bite from a hornet,
wasp or bee are about 1 in 5.9 million.
you're more likely to die from a lightning strike than be attacked by a shark.
According to the National Safety Council, your odds of dying from a
lightning strike are about 1 in 4.3 million.
you're more likely to drown in your bathtub than be attacked by a shark.
According to the National Safety Council, your odds of drowning in
your bathtub are about 1 in 800,000.
you're more likely to be attacked by a shark than die from an adverse reaction to antibiotics.
According to the National Safety Council, your odds of dying from an adverse reaction to antibiotics
are only about 1 in 7 million.
you're more likely to be killed by a falling object than be attacked by a shark.
According to the National Safety Council, your odds of being killed by a falling object are about 1 in 400,000.
you're more likely to be killed by an agricultural machine than be attacked by a shark.
According to the National Safety Council, your odds of being killed by an agricultural machine are 1 in 500,000.
you're more likely to be attacked by a shark than win your state lottery.
According to Jefferson Hane Weaver's What Are the Odds?:
The Chances of Extraordinary Events in Everyday Life (Prometheus Books, 2002),
your average odds of winning your state lottery are only about 1 in 14 million.
you're more likely — much, much more likely — to die in a motor vehicle accident
than be attacked by a shark.
According to the National Safety Council,
your odds of dying in a motor vehicle accident are 1 in 6,000.
Posted at 01:53 am by NN Team
Sunday, August 24, 2003
10 Cool Things About Great White Sharks
10 cool things about great whites
If great white sharks had tooth fairies, they’d be rich! A great white loses and replaces thousands of its teeth during its lifetime. Its upper jaw is lined with 26 front-row teeth; its lower jaw has 24. Behind these razor-sharp points are many rows of replacement teeth. The “spares” move to the front whenever the shark loses a tooth. At any one time about one-third of a shark’s teeth are in the replacement stage.
Great whites are the only sharks that can hold their heads up out of the water. This ability allows them to look for potential prey at the surface. Great white sharks usually attack from underneath, surprising their unwary prey.
Great white sharks are superstars. Before the Star Wars series, the 1975 movie Jaws was Hollywood’s biggest moneymaker. Jaws, about a great white on the prowl, cost $8 million to film but made $260 million in the U.S. Not bad for a fish story!
Great white sharks can sprint through the water at speeds of 43 miles an hour (69 kilometers an hour). That’s about 8.5 times as fast as the top Olympic swimmer. Scientists on the California coast tracked one shark as it swam all the way to Hawaii—2,400 miles (3,862 kilometers)—in only 40 days!
Picky eaters they’re not. While great white sharks prefer to eat seals, sea lions, and the occasional dolphin, they’ve been known to swallow lots of other things. Bottles, tin cans, a straw hat, lobster traps, and a cuckoo clock are among the items found inside the bellies of great white sharks.
Great white sharks have ears. You can’t see them, because they don’t open to the outside. The sharks use two small sensors in the skull to hear and, perhaps, to zero in on the splashing sounds of a wounded fish or a struggling seal.
Unlike most fish, great white sharks’ bodies are warmer than their surroundings. The sharks’ bodies can be as much as 27.3°F (15.17°C) warmer than the water the fish swim in. A higher temperature helps the great white shark swim faster and digest its food more efficiently. Very useful for an animal that’s always on the go!
A pregnant female great white shark can carry as many as 14 babies in her belly. At birth, a 5-foot-long (1.52-meter), 60-pound (22-kilogram) pup looks and acts like a miniature adult. Great whites average between 10 and 15 feet (3 and 4.6 meters) long. Females tend to be bigger than males. The longest confirmed great white shark measured 19.5 feet (5.9 meters). Male or female, they’re the world’s largest meat-eating fish.
A great white shark isn’t all white. A pale belly and dark charcoal-gray back help the shark avoid detection by prey. Viewed from above, the shark’s dark-colored back blends with the murky seafloor. From below, the shark’s belly matches the light-colored surface. Sneaky!
Man-eaters?” Maybe not. Some scientists believe that great white sharks are better described as “man-biters.” In more than half of all known great white attacks on swimmers, sharks have taken only a single bite before swimming away. Scientists speculate that perhaps people just don’t taste as good as seals or sea lions!
Posted at 04:36 am by NN Team
Thursday, August 21, 2003
Amphiprion perideraion Bleeker, 1855
The Pink Anemonefish is pinkish-orange with a white bar down either side of the face, and a white stripe along the back. It has a white caudal fin.
This species grows to 10cm in length.
The Pink Anemonefish inhabits coral reefs and is usually associated with the anemone Heteractis magnifica. It is sometimes seen associated with three other anemones: Heteractis crispa, Mactodactyls doreenis and Stichodactyla gigantea. Usually one adult pair and several juveniles are present in each anemone.
It is found in depths from 3m to 30m.
Pink Anemonefish feed on benthic algae and zooplankton.
This fish occurs in tropical marine waters of the Western Central Pacific, from the Philippine Islands, north to Japan, throughout Micronesia, south to Australia and east to the Samoan Islands.
In Australia it is known from northwestern coast of Western Australia and from the northern Great Barrier Reef, Queensland.
All images: Are Of A Pink Anenoe Fish Photographed by E.Schloegl
The fish is in the water at about
a depth of 10m, Off the Great Detached Reef, far northern Great Barrier Reef, Queensland, November 2001.
View a map of the collecting localities of specimens in the Australian Museum Fish Collection.
Posted at 07:59 pm by NN Team
Saturday, August 16, 2003
While an individual's odds of becoming the victim of a shark attack are extremely low (about 1 in 6 million in the United States), there are some sharks that are more likely to attack a human than others. All are large species that feed on large prey, and might thus eye a human-sized target as a potential meal.
Click HERE too see Great White Shark Images
Great White Shark (Carcharodon carcharias
The notorious white shark is credited with more fatal attacks on humans than any other shark species. Some think its aggression is a case of mistaken identity, since from below swimmers and surfers can resemble the shark's common meal of seal or sea lion, but others believe a great white will mouth any large unknown object to test its edibility.
Tiger Shark (Galeocerdo cuvier
The tiger shark is second only to the white shark in its number of unprovoked attacks on humans. What makes these sharks particularly threatening to swimmers and divers is a combination of their large size, hunting style (close to shore and the ocean's surface), natural curiosity and indiscriminate appetite; tiger sharks will eat just about anything that floats.
Click HERE too see more Tiger Shark Images.
Bull Shark (Carcharhinus leucas
The bull shark ranks third in its number of unprovoked attacks on humans; however, it is less physically distinguishable than other sharks, and is likely responsible for many of the attacks by unidentified species. The combination of its big size and its habitat — which includes populous tropical areas as well as freshwater bodies — makes it more of a potential threat than either white or tiger sharks.
Click HERE to see more Bull Shark Images.
Great Hammerhead (Sphyrna mokarran
The International Shark Attack File ranks hammerhead sharks seventh among the sharks most dangerous to humans (after white, tiger, bull, sand tiger, blacktip and requiem sharks). Because hammerhead species are difficult to distinguish from each other, few of their reported attacks can be attributed to the great hammerhead in particular. However, it is supposed that because of its large size and varied diet the species poses a potential threat to humans.
Click HERE to see more Hamer Head Shark Images.
Posted at 12:26 am by NN Team
Sunday, August 03, 2003
Special international in-transit programs suspended
Homeland Security and Department of State Take Immediate Steps To Make Air Travel Even Safer
For Immediate Release
Office of the Press Secretary
August 2, 2003
Special international in-transit programs suspended
WASHINGTON, DC - The U.S. Department of Homeland Security and the U.S. Department of State today suspended two programs that allow certain international air passengers to travel through the United States for transit purposes without first obtaining a visa. The programs, known as the Transit Without Visa program (TWOV) and the International-to-International transit program (ITI), have been suspended. The action takes effect at 11:00 a.m., Saturday August 2, 2003. (Note: All times are U.S. EDT). This action does not affect U.S. citizens or citizens from visa waiver countries.
Homeland Security issued instructions to all airlines to no longer allow passengers to utilize these transit programs. Homeland Security agencies are also taking additional steps to increase security at airports and on airplanes that normally transport and process passengers under these programs. These new measures are in addition to significant increases in aviation security implemented since September 11 such as reinforced cockpit doors, deployment of federal air marshals, enhanced federalized baggage and passenger screening and armed Federal Flight Deck Officers piloting some jetliners.
It is the intention of both Departments to reinstate the TWOV and ITI programs as soon as additional security measures can be implemented to safeguard the programs from terrorists who wish to gain access to the U.S. or U.S. airspace without going through the consular screening process. Officials have already begun this process of identifying possible steps that could be taken to further secure the transit programs. Homeland Security and the Department of State are soliciting comments from the public about the action and will reassess the suspension over the next 60 days after reviewing the responses. Current intelligence will also be a factor considered when deciding to re-implement the program.
Recent specific intelligence indicates that terrorist groups have been planning to exploit these transit programs to gain access to the U.S. or U.S. airspace without going through the consular screening process. The steps announced today are designed to augment security against possible terrorist threats and to protect U.S. citizens and foreign nationals who fly into and out of the United States.
"Our number one mission is to protect Americans and American interests from the threat of terrorism and we realize that terrorists aim to exploit our vulnerabilities and freedoms," said Homeland Security Secretary Tom Ridge. "The steps announced today, while aggressive, are an appropriate response to the threat. We know they will have an impact on international travelers, but we believe they are necessary in order to protect lives and property."
Homeland Security and State will make three exceptions to these actions to accommodate travelers who may be immediately impacted. The three exceptions are: 1) TWOV or ITI passengers in flight at the time the regulation goes into effect will be allowed to continue in transit and depart the U. S. subject to inspection and an evaluation of risk. 2) Travelers who purchased their tickets as TWOV or ITI passengers on or before July 24, 2003, and who are scheduled to depart for transit through the U.S. before 12:01 a.m., Tuesday, August 5, 2003, need not obtain a visa to transit the U.S. For any flights scheduled to depart after 12:01 a.m. August 5 that include a stop in the U.S, however, these travelers must now either obtain a visa or change their travel itinerary to exclude a stop in the U.S. 3) If a person has already traveled through the U.S. as a TWOV or ITI passenger on the first leg of their trip, and uses the return portion of their round trip ticket before 11:00 a.m., August 9, 2003, they will be permitted to make a stop in the U.S. without a visa on the return portion of their trip. They will be processed by U.S. Customs and Border Protection inspectors upon arrival in the United States. If they plan to transit the U.S. after that date and time, however, they must either obtain a visa or change their return itinerary to exclude a stop in the U.S.
The Transit Without Visa program has been in use in the United States since 1952. It applies to passengers who normally would be required to obtain a visa to travel to the United States. Under the TWOV program, passengers arriving in the United States from a foreign country are permitted to travel through the United States to another foreign destination without first obtaining a visa to stop and change planes in the United States. Passengers under the TWOV program go through the full border inspection process upon arrival in the U.S. Under the TWOV program, a passenger may stop at one or two U.S. airports en route to another foreign destination. If on a domestic flight to a second U.S. airport, the airline is responsible for ensuring that the passenger does not illegally enter the United States. Airlines provide contract security escorts and are required to maintain control of the passenger’s passport and other travel documents.
The International-to-International transit program also allows passengers arriving from foreign countries to transit through the United States to another foreign destination without first obtaining a visa. Unlike the TWOV program, however, ITI passengers may only transit through one airport, and they may not leave the international transit lounge while connecting planes at that airport.
In 2002, the top five countries from which TWOV passengers arrived in the United States were Brazil, Mexico, Korea, the Philippines, and Peru. The greatest number of TWOV and ITI passengers transited the U.S. through airports in Los Angeles, Miami, New York, Dallas and Houston.
Homeland Security agencies involved in this action include U.S. Customs and Border Protection, U.S. Immigration and Customs Enforcement and the Transportation Security Administration. They will work closely with airport authorities, airlines and state and local law enforcement to implement this new policy.
Posted at 04:55 am by NN Team
Wednesday, July 30, 2003
THIS IS WHERE THINGS GET SCARY . . .
March 4, 1985 was when Shirley Ann Durdin, a 33-year-old with four children, lost her life to a GW in Peake Bay, Australia. She had been snorkeling in water about 7 feet deep - equivalent to the deep end of a residential swimming pool - when she was fatally attacked by a GW estimated by witnesses to be 20 feet long. The first hit was a gory strike, the fish biting her in half. By the time Mrs. Durdin's would-be rescuers could get to the site of the attack, all that could be seen was the victim's headless torso. After a moment, the GW returned and took it as well. It was the first fatal GW attack in South Australian waters in over 10 years and the first time ever that an Australian victim was known to be eaten.
To be eaten - think about it for more than a moment and you're likely to push the thought from your rational mind and back into the depths of your subconscious, a dark pit that contains all of the other fears of death that are too awful to comprehend - the fear of falling, the fear of burning, the fear of being buried alive . . .
Unfortunately, it is this pit where most first thoughts and impressions of the GW reside. It is only with a bit of academic smoke and mirrors that scientists and researchers can cover up what remains the primary fascination that humans have with the GW, the fact that it is one of a handful of animals alive today that can actually eat one of us alive - and sometimes does.
THE JERSEY MAN-EATER (or the 'Jersey Person-Eater' for those more politically correct than I)
Although 'Jaws' is completely fictional, its account of what might happen if a big GW decided to camp offshore of a beach resort community faintly echoes the occurrences of a 12-day period in New Jersey during July of 1916. During this short span, five men were attacked by sharks with four of them being fatal. The first, a young man named Charles Vansant, was about 50 feet from shore when he was bitten on his left thigh. He died of massive blood loss less than two hours later.
Five days later, about 45 miles north of the first attack, Charles Bruder was hit by a shark that took both his feet. Although a lifeboat was launched at the moment he began to scream, he was about 400 feet from shore - too far to help. He perished within minutes of his arrival at shore.
Six days passed before the next incident. In what would be the worst of the Jersey attacks, a young boy named Lester Stillwell was pulled under while swimming with friends in Matawan Creek, some 30 miles north of the second attack. Several men dived into the creek to attempt a rescue only to have one of them, the ironically-named Stanley Fisher, bitten on his right thigh. A large amount of flesh was taken in the attack and although Fisher made it to the operating table, the damage was too great and he, too, fell victim to a shark.
The final victim was on his way to shore as word spread of the Stillwater-Fisher attacks but was too late. He was lucky, receiving only a laceration that managed to miss any major arteries.
The Jersey attacks are not noteworthy for being GW attacks. Although it is likely that a GW or a close relative like the mako shark was responsible for the first two attacks, no GW has ever demonstrated a propensity towards venturing into a freshwater (as opposed to seawater) area. The only shark noteworthy of this behavior is the bull shark and this was the likely suspect of the final three attacks. However, the media frenzy surrounding the attacks and the fears that they spread are indicative of the public's continuing fascination with shark attacks.
THE RED TRIANGLE & CALIFORNIA
Traveling west to the coast of California, we find that one particular stretch of coastline has acquired the ominous sobriquet of 'the Red Triangle'. This triangle stretches some 100 miles or so from Bodega Bay, north of San Francisco, to Ano Nuevo Island near Santa Cruz with the corner of the triangle being the famous Farallon Islands. Since scientists began accurately tracking shark attacks and the species responsible for them some fifty or so years ago, the Red Triangle has been the world's leading site of GW attacks on humans, a somewhat gruesome distinction.
A highly publicized attack took place near the Red Triangle during the winter of 1981. A week before Christmas, Lewis Boren and his friends were surfing at Spanish Bay, just south of Monterey. After lunch, Boren returned to the water alone where he was attacked while on his 5-foot fiberglass surfboard. His board was found the next morning with a large piece missing in the classic shape of a bite mark. The piece was found later and Boren's body was found floating about a half-mile north of the attack site with a similar bite mark. It seems he was floating out to catch the larger waves offshore, his arms outstretched in front of him, when a large GW attacked, cleanly biting through both him and his board. From the bite radius on the corpse and the board, the size of the attacking GW has been estimated at 18-20 feet.
Boren's board. The body looked about the same when recovered. Yikes.
In addition to the attack on Mrs. Durdin, Australia has had its fair share of GW attacks. The most documented GW attack occurred in 1963 when Rodney Fox was attacked while competing in a spear fishing contest. He attempted to poke the eye of his attacker but only managed to stick his hand into the shark's mouth, slicing his arm open to the bone. The shark let go but attacked again with Fox grabbing its snout to avoid being bitten again. Weakened by loss of blood and running out of air, Fox let go and struggled to the surface. The shark attacked again but only grabbed the fish line clipped to his belt, pulling Fox down with it. The shark's teeth then severed the line and Fox finally made it into a waiting boat. Rushed to the hospital, Fox underwent emergency surgery, an operation that required 462 stitches to put him back together.
When man meets shark, the results are not often pretty.
Fox is hardly the only diver attacked in Australian waters. Abalone diving is a profitable, if highly dangerous, activity that often puts the divers in contact with the GW, sometimes with fatal results.
SOUTH AFRICAN ATTACKS
The final stop on our world tour is South Africa where the GW is joined by the bull shark (Carcharhinus leucas) as an attacker. Both sharks are kept at bay by the large network of steel nets that protect the beaches of South Africa, nets that drown hundreds of sharks each year along with countless other marine life. These nets were put in place after a series of attacks in the late 50's threatened to end tourism in Durban. These attacks have since been attributed mainly to C. leucas but the GW is a constant presence.sidential swimming pool - when she was fatally attacked by a GW estimated by witnesses to be 20 feet long. The first hit was a gory strike, the fish biting her in half. By the time Mrs. Durdin's would-be rescuers could get to the site of the attack, all that could be seen was the victim's headless torso. After a moment, the GW returned and took it as well. It was the first fatal GW attack in South Australian waters in over 10 years and the first time ever that an Australian victim was known to be eaten.
As Gruesome as it seems and sounds, Shark Attacks are just another way nature and the human race collide.....You only have 1 in 8 million Chances of ever being attacked by any shark in your lifetime.. which in some cases is better odds than winning your country's lottery system, and in others so remote why do we even bother mentioning the odds at all...Simply because when an attack does occur the frightening and horrific nature in which a shark does attack is so inhumane to us we have a "need" to know as the inquisitive if not morbid sides of our human nature take over...Sharks are an amazing predatorial animal we share our vast oceans with, fear them YES we indeed should, HATE them, no we should not, our growing knowledge of them and their amazing habitats and habitual natures is forever extending and growing and the more we begin to realise about them the more amazing and beautiful they appear. Sharks because of movies like Jaws will always have a fearful, horrific, monsterous, dark rooted appeal in our world, yet they truly are one of the most beautiful creatures of the deep.
Posted at 11:59 am by NN Team