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Old 10-12-06, 18:50   #1
xMiSsCrOfTx
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Default Gorillas On the Verge Of Extinction, Study Suggests

WASHINGTON (Dec. 8) - The Ebola virus may have killed more than 5,000 gorillas in West Africa -- enough to send them into extinction if people continue to hunt them, too, researchers said on Thursday.



The virus is spreading from one group of the already endangered animals to another, the international team of experts report in this week's issue of the journal Science. And it appears to be spreading faster than it is among humans.

"The Zaire strain of Ebola virus killed about 5,000 gorillas in our study area alone," primatologist Magdalena Bermejo of the University of Barcelona in Spain and at the Programme for Conservation and Rational Utilization of Forest Ecosystems in Central Africa and colleagues wrote.

Ebola hemorrhagic fever is one of the most virulent viruses ever seen, killing between 50 percent and 90 percent of victims. The World Health Organization says that it killed 1,200 people infected between its discovery in 1976 and 2004.

The virus is transmitted by direct contact with blood, organs or other bodily fluids. There is no cure or good treatment, although several groups are working on vaccines.

Several experts have noted that chimpanzees and gorillas are also killed by the virus, and suspect that people may have caught it from infected apes -- perhaps when hunting them.

But it was not clear whether the gorillas were infecting one another, or being repeatedly infected and re-infected by another species of animal, perhaps a bat.

Bermejo's team had been studying a group of western gorillas in the Lossi Sanctuary in northwest Republic of Congo. "By 2002 we had identified 10 social groups with 143 individuals," they wrote.

In 2001 and 2002, several outbreaks of Ebola had begun killing people along the Gabon-Congo border. That led researchers to another discovery.

By October 2002, they had found 32 dead gorillas, and of the 12 they tested for Ebola, nine were positive.

"She knew these animals individually, and in the course of three months they all died," said Peter Walsh, an ecologist at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, who worked on the study.

Eventually the researchers counted 221 dead gorillas. Based on what they and other experts knew, Walsh extrapolated what the total impact must be to come up with the estimate of 5,500 gorillas killed by Ebola in that area.

He said no one knows precisely how many gorillas are in the world and how many have died.

"But I know what's the typical mortality rate in those areas that are affected. It's an educated guess. A quarter of the gorillas in the world have died from Ebola in the last 12 years. It's huge," Walsh said in a telephone interview.

"Add commercial hunting to the mix, and we have a recipe for rapid ecological extinction," the researchers wrote.

Their report supports a study published in July that showed gorillas were spreading the virus within their social groups.

"Our work is complementary to that -- we have shown it is spreading between groups," Walsh said.

Walsh said gorilla groups share territories, often eating fruit from the same tree, although at different times. Feces from a sick gorilla could easily infect other gorillas.

Gorillas and chimpanzees also touch and handle the bodies of other apes when they find them -- something known to transmit Ebola between humans.

"The issue here is that there is a certain amount of work that needs to be done to take these vaccines that already exist and put them into gorillas," Walsh said.

"The price tag on that is a couple of million bucks." He hopes a rich donor will take up the cause.

SOURCE

This is really sad. Normally, people don't think of gorillas becoming close to extinction.
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Old 10-12-06, 19:06   #2
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I didn't think either.OMG what's up with this world,if they keep doing this all animals will extinct
And the viruses are bad too.Poor animals
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Old 10-12-06, 19:08   #3
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Not surprised. Lara killed most of the gorillas in Greece.

But seriously, this is a shame. It's like most of the animals are becoming extinct.
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Old 10-12-06, 19:22   #4
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Oh dear.

Everything's going extinct except rats, flies and humans. =/
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Old 10-12-06, 19:24   #5
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I was just reading that on BBC. It's quite upsetting, after all nearly every animal will be extinct at some point. Its just because it's happening in my generation. There such nice, friendly (sometimes) animals. I recently visited my local Zoo and it's a shame that there locked up like that. *Cough* off topic *Cough*

Yeah, it's a true shame that they are becoming extinct.
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Old 10-12-06, 19:32   #6
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Well theres plenty at our school
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