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August 12, 2008—Numbers of the black-and-white ruffed lemur (Varecia variegata)—which, like all lemur species, is found only on the African island of Madagascar—have dwindled as a result of predation and habitat loss.
Last week the International Union for Conservation of Nature (IUCN) added several species and subspecies of primates, including the ruffed lemur, to the "critically endangered" category in its Red List of Threatened Species.
The additions were made as part of a study by hundreds of experts that suggests half of the world's apes, monkeys, and other primates are in danger of extinction.
Last week the International Union for Conservation of Nature (IUCN) added several species and subspecies of primates, including the ruffed lemur, to the "critically endangered" category in its Red List of Threatened Species.
The additions were made as part of a study by hundreds of experts that suggests half of the world's apes, monkeys, and other primates are in danger of extinction.
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Gray-Shanked Douc
Scientists first discovered the gray-shanked douc (Pygathrix cinerea) in 1997. Native toVietnam, fewer than a thousand of the primates are believed to exist.
Two years ago an IUCN survey estimated that 65 percent of Vietnam's primate species were considered "endangered" or "critically endangered."
In August 2008 the conservation organization released a new report that estimates 70 percent of Asian primate species are considered "threatened," "endangered," or "critically endangered." The gray-shanked douc is among the primates that are now listed as critically endangered
Scientists first discovered the gray-shanked douc (Pygathrix cinerea) in 1997. Native toVietnam, fewer than a thousand of the primates are believed to exist.
Two years ago an IUCN survey estimated that 65 percent of Vietnam's primate species were considered "endangered" or "critically endangered."
In August 2008 the conservation organization released a new report that estimates 70 percent of Asian primate species are considered "threatened," "endangered," or "critically endangered." The gray-shanked douc is among the primates that are now listed as critically endangered
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Cotton-Top Tamarin
The cotton-top tamarin (Saguinus oedipus)seen above was photographed at Rolling Hills Wildlife Adventure in Salina, Kansas.
About 1,800 members of the squirrel-sized monkey species native to Colombia live in captivity. Fewer than a thousand of the primates, newly listed as "critically endangered" by the IUCN, are found in the wild.
The cotton-top tamarin (Saguinus oedipus)seen above was photographed at Rolling Hills Wildlife Adventure in Salina, Kansas.
About 1,800 members of the squirrel-sized monkey species native to Colombia live in captivity. Fewer than a thousand of the primates, newly listed as "critically endangered" by the IUCN, are found in the wild.
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Celebes Black Macaque
A Celebes black macaque (Macaca nigra)strips ripe fruit from a fig tree in Tangkoko-Dua Saudara Nature Reserve on Sulawesi, one of two Indonesian islands that serve as the primate's sole habitat.
The monkey species is often mistaken for a type of ape, owing to its black coloring and a truncated tail.
Slightly more than a hundred thousand of the primates are thought to exist. In August 2008 the IUCN added the species to its list of critically endangered animals.
A Celebes black macaque (Macaca nigra)strips ripe fruit from a fig tree in Tangkoko-Dua Saudara Nature Reserve on Sulawesi, one of two Indonesian islands that serve as the primate's sole habitat.
The monkey species is often mistaken for a type of ape, owing to its black coloring and a truncated tail.
Slightly more than a hundred thousand of the primates are thought to exist. In August 2008 the IUCN added the species to its list of critically endangered animals.
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Pennant's Red Colobus Monkey
A male adult Pennant's red colobus monkey(Procolobus pennantii) is photographed in the wild on Bioko Island, 20 miles (32 kilometers) off the coast of Cameroon in central West Africa. (See more photos of animals on the island.)
Of the continent's 13 red colobus monkey species, 11 are listed as critically endangered by the IUCN. The nonprofit added the Pennant's red colobus monkey to its list of critically endangered animals in 2008.
A male adult Pennant's red colobus monkey(Procolobus pennantii) is photographed in the wild on Bioko Island, 20 miles (32 kilometers) off the coast of Cameroon in central West Africa. (See more photos of animals on the island.)
Of the continent's 13 red colobus monkey species, 11 are listed as critically endangered by the IUCN. The nonprofit added the Pennant's red colobus monkey to its list of critically endangered animals in 2008.
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Highland Mangabey
Three years ago scientists discovered a new monkey species known as the highland mangabey (Lophocebus kipunji), or kipunji, seen above, in a mountainous region ofTanzania in East Africa.
Experts estimate that fewer than a thousand of the medium-size, long-tailed tree-dwellers live in the wild, a figure that led the IUCN to list the primate as "critically endangered" in 2008. (See"Newfound Monkey Species 'Rarest in Africa,' Expert Says" [August 4, 2008].)
Among the hundreds of primate species and subspecies known to science, 53 have been discovered since 2000.
Three years ago scientists discovered a new monkey species known as the highland mangabey (Lophocebus kipunji), or kipunji, seen above, in a mountainous region ofTanzania in East Africa.
Experts estimate that fewer than a thousand of the medium-size, long-tailed tree-dwellers live in the wild, a figure that led the IUCN to list the primate as "critically endangered" in 2008. (See"Newfound Monkey Species 'Rarest in Africa,' Expert Says" [August 4, 2008].)
Among the hundreds of primate species and subspecies known to science, 53 have been discovered since 2000.
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