[cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2008/WORLD/africa/08/05/congo.gorillas/art.lowland.gorillas.ap.jpg]Hopes for the survival of a critically endangered primate have been boosted after the discovery of 125,000 Western lowland gorillas living in a swamp in northern Congo.
"It's pretty astonishing," Hugo Rainey, one of the researchers who conducted the survey for the U.S.-based Wildlife Conservation Society, told CNN Tuesday.
The last census on the species, carried out during the 1980s, estimated that there were only 100,000 of the gorillas left worldwide. Since then, the researchers estimated, the numbers had been cut in half.
WCS survey teams conducted the research in 2006 and 2007, traveling to the remote Lac Tele Community Reserve in northern Congo, a vast area of swamp forest.
Acting on a tip from hunters who indicated the presence of gorillas, Rainey said that the researchers trekked on foot through mud for three days to the outskirts of Lac Tele, about 80 kilometers (50 miles) from the nearest road.
Filed under: Planet in Peril
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