Word: marmosets
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...Sloths are a common sight in parks and on hillside trails, and marmoset monkeys scamper along telephone lines and swing through the trees of several neighborhoods. Armadillos, hawks and skunks often invade homes, while firefighters are called to remove caimans from back gardens and swimming pools. A capybara has even startled bathers by appearing on Ipanema Beach...
...Roosmalen, 53, nearly squeaked back, with amazement. An expert primatologist, he was staring at an unknown genus of pygmy marmoset. It was a remarkable discovery; the last time any scientist had identified a new primate genus was in the late 19th century. Trouble was, the Indian knew only that the marmoset had been trapped somewhere near the Madeira River, a 2,000-mile stretch of water flowing into the Amazon from the Bolivian Andes. This clue propelled Van Roosmalen on an epic, nine-month odyssey in which he found far more than the elusive marmosets...
...healthy, smart mice that are free of brain disease? You can't take it for granted that every medical advance in mice will also benefit people." But the evidence started mounting. Over the past three years, researchers have discovered that brain cells regenerate in primate-like tree shrews, marmoset monkeys and rhesus monkeys, all of which are closer to us on the evolutionary scale than are mice (except in Kansas). The real payoff came late last year, when Fred Gage at the Salk Institute and his colleagues in Sweden reported that nerve cells are regenerated in the human hippocampus...
Mittermeier the scientist is all seriousness and wonder. He has written or co-written several books, including a gorgeous, monster-size photographic work called Megadiversity, and hundreds of monographs on his beloved monkeys. A recent paper on a newly discovered species of marmoset, Callithrix humilis, shows the monkey at age two months: studious eyes, a tight, alert face and an aureole of gray and white hair. It looks a lot like Mittermeier, who would not mind the comparison...
...pocket-size monkey with a koala-like face, a hint of stripes like a zebra and tufted ears is the latest species to be discovered in the world's largest rain forest. Named after the Brazilian river near which it was spied, the Maues marmoset is the third new monkey to be found in the forest during the last two years. Such revelations underscore the Amazon's biological richness (it is home to more than a quarter of the world's known primate species) and its continuing mystery...