Thursday, September 07, 2006

The Loss of Crocodile Hunter

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Stingray kills famed 'Crocodile Hunter'

CAIRNS, Australia - Steve Irwin, the hugely popular Australian television personality and conservationist known as the "Crocodile Hunter," was killed Monday by a stingray while filming off the Great Barrier Reef. He was 44.

Irwin was at Batt Reef, off the remote coast of northeastern Queensland state, shooting a segment for a series called "Ocean's Deadliest" when he swam too close to one of the animals, which have a poisonous barb on their tails, his friend and colleague John Stainton said.

"He came on top of the stingray and the stingray's barb went up and into his chest and put a hole into his heart," said Stainton, who was on board Irwin's boat at the time.
Readmore... Click here: http://news.yahoo.com/s/ap/20060904/ap_on_en_tv/obit_irwin

PS: I was very sad and felt pity for such great man like the world's crocodile hunter... He shouldn't be dead! When I was watching Animal Planet yesterday evening with my family, we all were very surprise that he is now dead! We couldn't belive our eyes and hearing from the TV! :(

Remember one phrase: "Bravery is good and appreciated but TOO Couragous leads to damage!"

4 comments

dara said...

Don't be so sad dee.
This is life. We are buddhist so may be you knew that we were born because of Karma. No one know what tomorrow will bring. Just do good as much as you can ...

deedee said...

yep i kno! love and miracles.... thanks!

traactivity said...

How do stingrays kill?
World-famous "Crocodile Hunter" Steve Irwin, known for seeking out and handling some of the most dangerous animals in existence, died on Monday, September 4, in a shocking accident with a stingray. Stingrays are considered by most experts to be docile creatures, only attacking in self-defense. Most stingray-related injuries to humans occur to the ankles and lower legs, when someone accidentally steps on a ray buried in the sand and the frightened fish flips up its dangerous tail. In the early stages of examining the Steve Irwin accident, some experts have hypothesized that the combined positions of Irwin (above the fish) and his cameraman (in front of the fish) could have made the stingray feel trapped and triggered a defensive attack; others point out that completely unprovoked stingray attacks are not unheard of.

Whatever the cause of the attack, Irwin was very unlucky. Stingray-related fatalities (in humans) are extremely rare, partly because a stingray's venom, while extraordinarily painful, isn't usually deadly -- unless the initial strike is to the chest or abdominal area, as it was in Irwin's case.

Some news agencies have reported that the encounter was with an Australian bull ray, estimated to weigh about 220 pounds (100 kg). Irwin was snorkeling in about 6 feet (2 meters) of water, filming a new documentary titled "Ocean's Deadliest" off the coast of Australia. While Irwin was swimming with one of the larger species of rays out there -- Australian bull rays can be up to 4 feet (1.2 meters) wide and 8 feet (2.4 meters) long -- all stingrays use the same attack mechanism regardless of size. The mechanism is called a sting, up to 8 inches (20 cm) long in a bull ray, located near the base of the tail. The sting contains a sharp spine with serrated edges, or barbs, that face the body of the fish. There is a venom gland at the base of the spine and a membrane-like sheath that covers the entire sting mechanism.
When a stingray attacks, it needs to be facing its victim, because all it does is flip its long tail upward over its body so it strikes whatever is in front of it. The ray doesn't have direct control over the sting mechanism, only over the tail. In most cases, when the sting enters a person's body, the pressure causes the protective sheath to tear. When the sheath tears, the sharp, serrated edges of the spine sink in and venom flows into the wound.

A stingray's venom is not necessarily fatal, but it hurts a lot. It's composed of the enzymes 5-nucleotidase and phosphodiesterase and the neurotransmitter serotonin. Serotonin causes smooth muscle to severely contract, and it is this component that makes the venom so painful. The enzymes cause tissue and cell death. If the venom is introduced into an area like the ankle, it can usually be treated. Heat breaks down stingray venom and limits the amount of damage it can do. If not treated quickly enough, amputation might be necessary. But if the venom enters the abdomen or chest cavity, the resulting tissue death can be fatal because of the major organs located in the vicinity. If the spike enters the heart, as is reported to be the case in Steve Irwin's accident, the results are fatal.

While a stingray's venom can do serious damage, the most destructive part of the sting mechanism can actually be the barbs on the spine. The sharp tip of the sting enters a person pretty smoothly, but its exit is roughly equivalent to backing up over those "severe tire damage" blades. Remember that the points of the barbs are facing the stingray. Even if venom weren't involved at all, pulling the spike out of a human's chest or abdomen could be enough to cause death from the massive tearing of tissue that results.

Anonymous said...

Whatever the cause of the attack, Irwin was very unlucky. Stingray-related fatalities (in humans) are extremely rare, partly because a stingray's venom, while extraordinarily painful, isn't usually deadly -- unless the initial strike is to the chest or abdominal area, as it was in Irwin's case.

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