美洲大陆首次发现食肉性浣熊属动物

Observed in the wild, tucked away in museum collections, and even exhibited in zoos around the world -- there is one mysterious creature that has been a victim of mistaken identity for more than 100 years. A team of Smithsonian scientists, however, uncovered overlooked museum specimens ¹ of this remarkable ² animal, which took them on a journey from museum cabinets in Chicago to cloud forests in South America to genetics labs in Washington, D.C. The result: the olinguito (Bassaricyon neblina) -- the first carnivore species to be discovered in the American continents in 35 years. The team's discovery is published in the Aug. 15 issue of the journal ZooKeys., ,The olinguito (oh-lin-GHEE-toe) looks like a cross between a house cat and a teddy bear. It is actually the latest scientifically documented member of the family Procyonidae, which it shares with raccoons, coatis（长臂浣熊）, kinkajous（蜜熊） and olingos. The 2-pound olinguito, with its large eyes and woolly orange-brown fur, is native to the cloud forests of Colombia and Ecuador, as its scientific name, "neblina" (Spanish for "fog"), hints. In addition to being the latest described member of its family, another distinction the olinguito holds is that it is the newest species in the order Carnivora -- an incredibly rare discovery in the 21st century., ,"The discovery of the olinguito shows us that the world is not yet completely explored, its most basic secrets not yet revealed," said Kristofer Helgen, curator of mammals at the Smithsonian's National Museum of Natural History and leader of the team reporting the new discovery. "If new carnivores can still be found, what other surprises await us? So many of the world's species are not yet known to science. Documenting them is the first step toward understanding the full richness and diversity of life on Earth.", ,Discovering a new species of carnivore, however, does not happen overnight. This one took a decade, and was not the project's original goal -- completing the first comprehensive study of olingos, several species of tree-living carnivores in the genus Bassaricyon, was. Helgen's team wanted to understand how many olingo species should be recognized and how these species are distributed -- issues that had long been unclear to scientists. Unexpectedly, the team's close examination of more than 95 percent of the world's olingo specimens in museums, along with DNA ³ testing and the review of historic field data, revealed existence of the olinguito, a previously ⁴ undescribed species., ,The first clue came to Helgen from the olinguito's teeth and skull ⁵, which were smaller and differently shaped than those of olingos. Examining museum skins revealed that this new species was also smaller overall with a longer and denser ⁶ coat; field records showed that it occurred in a unique area of the northern Andes Mountains at 5,000 to 9,000 feet above sea level -- elevations⁷（海拔） much higher than the known species of olingo. This information, however, was coming from overlooked olinguito specimens collected in the early 20th century. The question Helgen and his team wanted to answer next was: Does the olinguito still exist in the wild?, ,To answer that question, Helgen called on Roland Kays, director of the Biodiversity and Earth Observation Lab at the North Carolina Museum of Natural Sciences, to help organize a field expedition., ,"The data from the old specimens gave us an idea of where to look, but it still seemed like a shot in the dark," Kays said. "But these Andean forests are so amazing that even if we didn't find the animal we were looking for, I knew our team would discover something cool along the way."