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New Carnivore Revealed
Photograph courtesy Durrell Wildlife Conservation Trust
Revealed Monday, the first new species of meat-eating mammal to be discovered in 24 years bares its teeth for the cameras in a recent picture.
First spotted swimming in Madagascar's Lac Alaotra in 2004, the cat-size creature resembles a "scruffy ferret" or mongoose, said John Fa, a director of conservation science at the U.K.'s Durrell Wildlife Conservation Trust, who was part of the discovery team.
"We biologists are a bit like children," Fa said. "We like new things. So a new species is something that really excites us."
Dubbed Durrell's vontsira in honor of the late conservationist Gerald Durrell, the new carnivore is an especially rare find: "The probability of finding a new herbivore"—or plant-eater—"is always greater, because there're more of them," Fa said. "Carnivores are much more specialized and usually found in low densities."
(See a picture of the Cypriot mouse, the first new mammal species to be discovered in Europe in more than a century.)
—Ker ThanDescribed in the September issue of the journal Systematics and Biodiversity, Durrell's vontsira was discovered by researchers from the Durrell trust, the Natural History Museum in London, Nature Heritage in Jersey, and Conservation International.
Published October 12, 2010
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Tooth and Claw
Photograph courtesy Durrell Wildlife Conservation Trust
Since 2004 scientists have spotted just four Durrell's vontsiras (including this one, pictured recently in Madagascar). Two were captured briefly, while another two have only been photographed.
Fa and colleagues had been working around Lac Alaotra for years, "and we never, ever heard anyone say anything about this species of mammal. So it was very surprising to see it swimming in the lake," Fa said.
The Durrell's vontsira closely resembles the brown-tailed vontsira, found in Madagascar's eastern rain forests, about 30 miles (50 kilometers) away (see a Masdgascar map). But the teeth of the new species appear to be more robust, and there are some differences in its paws, which may be adaptions to living near water, Fa said.
"From its dentition, we think it might be living off mollusks and crustaceans," he added.
The new species was discovered near the sight of the last sighting, in 1989, of an Alaotra grebe. The water bird, never seen in any other country, was officially declared extinct in April.
"The Alaotra grebe was the last species anywhere in the world to be declared extinct," said Frank Hawkins of Conservation International, a co-author of the new study describing the Durrell's vontsira. "Within 50 yards [160 feet] of where [the grebe] was last seen, we discovered another creature that wasn't known to science beforehand."
(See related carnivore pictures: "Cameras 'Trap' Hairy-Nosed Otter, More Rarities.")Published October 12, 2010
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Marshes in Decline
Photograph courtesy Durrell Wildlife Conservation Trust
Scientists navigate Lac Alaotra's dense marshland in search of Durrell's vontsira, the newly discovered, but rarely seen, species of carnivorous mammal native to Madagascar.
Despite being found only recently, the creature may already be endangered, scientists say.
"It's hard to imagine that there're more than 50 out there," Conservation International's Hawkins said.
The animal's habitat in Madagascar is being gradually cleared away for farming.
"Over the past 20 years there's been a decline in marsh areas to make way for rice," the Durrell trust's Fa said. Scientists suspect invasive species—such as the snakehead fish, which is native to Asia—may also pose a threat.
"Who knows if the fish actually have an impact on mammals in the lake, but certainly these exotic species are something to take into account," Fa said.
(Related: "Mammals 'Rafted' to Madagascar, Climate Model Suggests.")
Published October 12, 2010
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