Great apes are threatened with decline in the next 30 years

monkey Macaca fuscatta – Japanese monkey Description Monkeys are the most widespread and numerous primates of the Old World. They belong to the Cercopithecidae family. They can be found in the rainforests of Southeast Asia, the savannas of India, the snow-capped mountains of the Himalayas, the temperate forests of Japan and the Atlas Mountains of Morocco. Of all the species, the best known is the rhesus macaque that lives in northwest India, northern Vietnam, Myanmar and Thailand. The most photogenic and surprising is undoubtedly the Japanese macaque which, as its name suggests, is only found in the mountains of the islands of the Japanese archipelago. Endowed with great resistance to the cold, it is the northernmost ape on the planet. Macaca fuscatta inhabits mixed deciduous and coniferous forests in the mountains, close to hot springs essential for their survival in winter. With a size that varies from 75 to 90 cm without the tail and a weight varying from 8 to 14 kg depending on sex, the different subspecies are differentiated only by their geographical location. The longevity of a Japanese monkey can reach more than 30 years. Its fur is light beige in color and covers its entire body, except for the face which is pink and can turn bright red under certain circumstances. The coat is very thick and the tail is reduced to a stump to limit exposure to the cold and snow that sometimes covers it at night. Their diet is omnivorous. It lives in groups of 40 to 200 individuals, on average, and spends most of its days on the ground in search of food. To sleep, he snuggles against his kin. When the temperature drops, the fuscatta macaca’s thick wool is no longer enough to warm it. He then enters without hesitation into one of the many basins that dot the volcanic mountains, and whose water springs from the earth at 40°. Your body thus stores heat until the next shower. Comfortably installed, it fulfills the essential social activity of delousing. Research Ever since science and medicine began to experiment, monkeys have paid a heavy, perhaps not always justified, price for our well-being. In 1940, Landsteiner’s discovery made it possible to classify different blood groups according to the presence or absence of A or B antigens on the surface of red blood cells. It was a rhesus monkey (macaca mulatta) that was used to make the first test serum to differentiate the different blood groups that today bear the name of “rhesus groups”. These monkeys have also been used in experimental surgery (pig kidney transplantation), in nuclear medicine (anti-cancer immunotherapy), in neuroscience (cognition, spatial orientation), in virology (viral hepatitis, herpes, polio, AIDS, etc.), in pharmacology (toxicology), cosmetics (ingredient testing), military (biological warfare) and space. In March 1967, from Hammaguir in Algeria, France sent a monkey nicknamed Martine into space, with the aim of verifying whether, in the absence of gravity, a mammal was capable of performing acts that require reflection, memory and motor skills. . . News On October 2, 2000, researchers at Oregon University of Science in Portland gave birth to ANDI, the first PGM (genetically modified primate). ANDI for inserted DNA. The monkey carries a marker gene that encodes a green fluorescent protein from… jellyfish! Scientists are patiently waiting for the monkey’s puberty to find out if the inserted gene can be passed on to offspring. The experiment consists of studying, through the gene, the progression of certain diseases to find remedies. In late 2004, a new species of monkey was discovered in India. That didn’t happen a hundred years ago. See the following link: http://www.up.univ-mrs.fr/aeeb/singe.htm Comments Patrick Straub Read the file “Threats of extinction from our close relatives” http://www.futura-sciences.com / understand/d/dossier518-1.php

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