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Tag: "monkey" at biology news

Modeling the restless brain

...rge-scale computer model of the brain of a macaque monkey -- they demonstrated that the shape and pattern of the fluctuations are determined by the brain's wiring diagram, its neuroanatomy. Their model also can show how slow 5- to 10-second fluctuations of activity emerge naturally from much faster, cha...

Analysis of rhesus monkey genome uncovers genetic differences with humans, chimps

...ublished the genome sequence of the rhesus macaque monkey and aligned it with the chimpanzee and human genomes. Published April 13 in a special section of the journal Science, the analysis reveals that the three primate species share about 93 percent of their DNA, yet have some significant differences among...

New research says winning a Nobel Prize adds nearly 2 years to your lifespan

...ce of some kind of effect is known from studies of monkey packs, in humans it has been difficult up till now to separate any perceived positive effect of "status" from the effect of simple greater wealth that status often brings. Nobel Prize winners were viewed as an ideal group to study as the winners coul...

New evidence of 'human' culture among primates

... at the same time. "We already know that these monkey populations use stones as tools to dig holes or to forage and questions remain about why this happens in this area. Because it is quite dry and barren, it is possible they learn these skills from one another because they have to develop them quickly....

Low levels of neurotransmitter serotonin may perpetuate child abuse across generations

...nd monkeys is quite similar, the findings from the monkey research could be valuable in understanding human child abuse, said Dario Maestripieri, Associate Professor in Comparative Human Development at the University of Chicago. "This research could have important implications for humans because we do n...

Power emerges from consensus in monkey social networks

...res arise from a status communication network in a monkey society. Power structure is important because it can influence the complexity of interactions among group members. "When building a society, it is of utemost importance that signals be informative and any sources of ambiguity minimized," says Krakau...

HIV gets a makeover

...hole conundrum. The HIV-1 virus won't replicate in monkey cells, so researchers use a monkey virus -- known as SIVmac, or the macaque version of simian immunodeficiency virus -- to test potenti...

Mirrors in the mind: New studies elucidate how the brain reflects onto itself the actions of others

... subset of these neurons fire when, for example, a monkey picks up a banana, and when the monkey observes a human picking up a banana in a similar way. Mirror-neuron activity appears to be highly s...

Complexity constrains evolution of human brain genes

...ousand genes expressed in the brain of the macaque monkey and compare them with available genomic sequences from human, chimpanzee, and mice. What they found was that the "more advanced" species had faster overall rates of evolution. So, on average, the genes from humans and chimpanzees changed faster...

Researchers find that bumblebees' flower choice matters

...'s research centers on the reproductive biology of monkey flower, a wetland plant native to Wisconsin. Karro...'s lab uses several innovative methods of tracking monkey flower mating, and all hinge on where the pollen comes from. Pollen allows the flowers, which con...

Scientists describe new African monkey genus ?first in 83 years

... the world's only specimen of this forest-dwelling monkey "resides" in the museum's vast collections. "Fin...phs. At that time, scientists placed the reclusive monkey in the genus Lophocebus, commonly known as mangabeys. Shortly thereafter, one of these monkeys die...

HIV-1's high virulence might be an accident of evolution

...or the first time--a mechanism to explain why many monkey species naturally infected with SIV do not develop...at nef-deficient SIV failed to cause symptoms in a monkey species normally susceptible to disease, Kirchhoff said. Rhesus macaques infected with the mutant vi...

Himalayan forests disappearing

...that in humans, it follows that PFC neurons in the monkey brain process information for future events in a prospective manner to generate action plans based on a series of events during the course of reaching a behavioral goal," they wrote. ...

The brain's executive is an 'event planner'

...that in humans, it follows that PFC neurons in the monkey brain process information for future events in a prospective manner to generate action plans based on a series of events during the course of reaching a behavioral goal," they wrote. ...

Stanford study of owls finds link in brain between sight and sound

...they see. These researchers have found that when a monkey decides to turn its eyes, the regions of the brain...ation increase their responses to objects that the monkey is about to look at and decrease their responses to all other objects in the world. Finding that au...

Attention shoppers: Researchers find neurons that encode the value of different goods

... offered in different amounts. In some trials, the monkey chose between one drop of grape juice (which monke... and one drop of apple juice. In other trials, the monkey chose between one drop of grape juice and two drops of apple juice, etc. Behaviorally, Padoa-Schiopp...

Testes to incubate stem cells

...cell growth. The team's next move is to transplant monkey and human cells into the mouse testes system. "It is truly remarkable that mouse testes can sustain these bovine cells in culture," says Elaine Dzierzak, who coordinates a EuroSTELLS project at Erasmus University Medical Centre in Rotterdam. Testicu...

'Executive' monkeys influenced by other executives, not subordinates

...nd/or genetic influences determine who becomes the monkey or human equivalent of Donald Trump, and who becom...hed onto the screen, randomly in the direction the monkey image was looking or in the opposite direction. The monkeys were given juice rewards for their parti...

'Banana-jawed' fossil mammal linked to rare sound-producing skill

...Simons visited the site in search of early ape and monkey fossils, as part of his main research focus on the evolution of primates leading up to humans. During these explorations in the "Badlands of Egypt," his group collected enough specimens of Thyrohyrax to allow a systematic analysis of its jaws. "Pale...

Performing monkeys in Asia carry viruses that could jump species to humans

...act with non-human primates ?zoos, animal markets, monkey forests, pet ownership, and urban street performan...r forms of primate/human contact, among them urban monkey performances, may be more prevalent than bushmeat hunting. Asia has a long history of performing mon...

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