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Latest Rhesus Macaque Stories

rhesus monkey breast or bottle
2014-09-05 02:00:42

Andy Fell, University of California - Davis Health System Infants receiving different diets after birth develop distinct immune systems Infant rhesus monkeys receiving different diets early in life develop distinct immune systems that persist months after weaning, a study by researchers from UC Davis, the California National Primate Research Center (CNPRC) at UC Davis and UC San Francisco has shown. The study, which compares breast- and bottle-fed infants, appears online September 3 in...

Rhesus Monkey Infants Express Sociability While On Oxytocin: Study
2014-04-29 13:47:28

Brett Smith for redOrbit.com - Your Universe Online Involved in child birth and the production of breast milk, oxytocin is a hormone produced in the pituitary gland. A new study published in the Proceedings of the National Academy of Sciences has found that this hormone also promotes social behavior in infant rhesus monkeys, or macaques. While the hormone has been shown to promote a number of social behaviors in adults before, the recent study has shown this effect in primate infants of...

ADHD Drug Ritalin Shown To Control Impulsiveness In Rhesus Monkeys
2013-11-14 07:30:27

redOrbit Staff & Wire Reports - Your Universe Online Impulsive monkeys were more likely to accept delayed gratification after being given a dose of methylphenidate, the active ingredient of the drug Ritalin, according to new research presented during Neuroscience 2013, the annual meeting of the Society for Neuroscience. According to Luis Populin, associate professor of neuroscience at University of Wisconsin-Madison, 11 percent of all American children between the ages of four and...

Snakes Helped Evolution Of High-Quality Vision
2013-10-29 04:52:33

[ Watch the Video: What Do Snakes Have To Do With Vision Evolution? ] redOrbit Staff & Wire Reports - Your Universe Online Neuroscientists from Brazil and Japan have found new evidence in support of a theory that that human ancestors developed high-quality vision as a defense mechanism against the threat of snakes. The study, which was published Monday in the journal Proceedings of the National Academy of Sciences, demonstrated that there are specific nerve cells located in the...

Tiny Silicon Crystals Could Be Safe For Deep-tissue Imaging
2013-07-31 13:54:50

University at Buffalo Tiny silicon crystals caused no health problems in monkeys three months after large doses were injected, marking a step forward in the quest to bring such materials into clinics as biomedical imaging agents, according to a new study. The findings, published online July 10 in the journal ACS Nano, suggest that the silicon nanocrystals, known as quantum dots, may be a safe tool for diagnostic imaging in humans. The nanocrystals absorb and emit light in the...

Evolution Gave Humans Unique Brain Structures Over Primates
2013-02-24 06:04:08

redOrbit Staff & Wire Reports - Your Universe Online Researchers have discovered a pair of functional networks in the human cerebral cortex that are not present in the brains of rhesus macaque monkeys, leading them to theorize that the networks were added during the evolution from ancient primates to the modern day homo sapiens. The networks were discovered by a team of researchers led by neurophysiologist Wim Vanduffel of University of Leuven and Harvard Medical School (HMS), who...

Insights Into Primate Diversity Learned From The Rhesus Macaque
2012-06-29 09:27:37

New research published in BMC Genetics shows that the rhesus macaque has three times as much genetic variation than humans. However despite much of this extra variation being within genes, it does not affect protein function. Consequently damaging variations are at similar levels in macaques and humans - indicating a strong selection pressure to maintain gene function regardless of mutation rate or population size. Humans and rhesus macaques shared a common ancestor approximately 25...

2012-06-21 01:59:03

Princeton researcher explains link from friendly primate facial gesture to human speech The throat and facial movements that twist the air pushing through your vocal cords into words could be rooted in the well-meaning expressions primates exchange with each other, according to two recent studies based at Princeton University. The researchers found that the oral-facial component of human speech mirrors the rhythm, development and internal dynamics of lip smacking, a friendly...

Researchers Find Link Between Social Status, Immunity in Monkeys
2012-04-10 04:26:18

Changes in a female monkey's social status lead to changes in her immune system, and researchers writing in this week's edition of the Proceedings of the National Academy of Sciences (PNAS) Early Edition suggest that the findings may be applicable to humans as well. The research, which was led by Jenny Tung, currently a visiting assistant professor in Duke University's evolutionary anthropology department and a postdoctoral researcher at the University of Chicago at the time of the study,...

New Study Offers Evidence Against 'Rotting Y' Chromosome Theory
2012-02-23 06:04:12

Males of the world, fear not -- researchers have determined that the chromosome which determines maleness is not shrinking after all, and concerns that the gender could be headed for extinction are apparently unfounded. The study, which was led by Jennifer Hughes and David Page of the Whitehead Institute for Biomedical Research and the MIT Department of Biology, have compared the genes of the human Y chromosome to those of chimpanzees and rhesus macaques, according to Guardian Science...


Latest Rhesus Macaque Reference Libraries

Pagai Island Macaque, Macaca pagensis
2014-04-14 12:26:36

The Pagai Island Macaque (Macaca pagensis), known also as the Pagai Macaque or Bokkoi, is an Old World monkey that is native to the Mentawai Islands off of the west coast of Sumatra. It is classified as Critically Endangered under the IUCN Red List because of its ever-shrinking habitat. It previously included the overall darker M. siberu as a subspecies, but this agreement is polyphyletic, leading to the two being classified as a separate species. Both were previously thought to be subspecies...

Celebes Crested Macaque, Macaca nigra
2014-04-10 14:28:21

The Celebes Crested Macaque (Macaca nigra), known also as the Crested Black Macaque, Sulawesi Crested Macaque, or the Black Ape, is al Old World Monkey that resides in the northeast of the Indonesian island of Sulawesi as well as on smaller neighboring islands. The skin and the hairless face is, with the exception of some white hair on the shoulder range, entirely jet black colored. The long muzzle with high cheeks and the long tuft of hair, or crest, at the top side of the head are...

42_191768e6c60ce0a3aa5dc3ccd4869451
2007-01-01 15:36:02

The rhesus macaque (Macaca mulatta), often called the rhesus monkey, is one of the best-known species of Old World monkeys. It is a typical macaque, common throughout Afghanistan to northern India and southern China. Adult male rhesus macaques measure approximately 20.87 in (53 cm) on average and weigh an average of 16.98 lb (7.7 kg). Females are smaller, averaging 18.5 in (47 cm) long and 11.68 lb (5.3 kg) in weight. They are brown or grey in color and have pink faces that are typically...

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2007-01-01 14:09:38

The Celebes crested macaque (Macaca nigra), also known as the crested black macaque, Sulawesi crested macaque, or the black "Ape", is an Old World monkey. It lives in the northeast of the Indonesian island of Sulawesi (Celebes) as well as on smaller neighboring islands. Its skin and hairless face is entirely black. This is with the exception of some white hair in the shoulder range. The long muzzle with high cheeks and the long hair tuft at the topside of the head are remarkable. The tail...

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Word of the Day
cruet
  • A vial or small glass bottle, especially one for holding vinegar, oil, etc.; a caster for liquids.
This word is Middle English in origin, and ultimately comes from the Old French, diminutive of 'crue,' flask.
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