Sentences with phrase «of chimps»

The NIH has not funded new research involving chimps since December 2011, when the Institute of Medicine, a nonprofit that advises the government on health policy, issued a report establishing strict criteria for the use of chimps in biomedical and behavioral research.

We assume that the common ancestor of chimps and humans, like all of the non-human apes, had a full coat.

Some groups of chimps use twigs to fish for termites, others don't.

And the changes are handed down: While most of the chimp genome's 24 pairs of chromosomes undergo a genetic reshuffling during the production of sperm and eggs, with genes swapped between the two copies, there is only one Y chromosome and thus no mixing — the Y is transmitted intact.

The different natures of the two apes became clear when the researchers, led by Brian Hare, a biological anthropologist at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, presented pairs of bonobos and pairs of chimps with plates of fruit.

In 2008 pharmaceutical manufacturer GlaxoSmithKline announced it would end its use of chimps.

De Waal and colleagues have been testing human intuition concerning the behavior of chimps at the Arnheim Zoo since 1976.

All 20 of the specimens contained «pre-tangles», and blood vessels in several of the chimp brains contained amyloid - β.

Our forebears stood only about as tall as a chimpanzee and had brains the size of a chimp's.

A rough draft of the chimp sequence has already been released, and a more detailed version is expected soon.

A team of anthropologists spent nearly 600 hours observing the social interactions of chimps at a Swiss zoo.

A new decision from the nation's medical research agency will send most of its chimps into retirement

The experiments also revealed something else: pupil dilation in humans is not altered by viewing images of chimps with either dilating or constricting pupils, and vice versa.

The authors were also able to examine the DNA of the chimps in Uganda using fecal samples, and they looked at published chimp genomes from across Africa.

Since a rough draft of the chimp genome became available in 2005, much research has focused on human gene sequences that are missing in apes.

Feigning a mood is another form of chimp deception involving false cues.

Clayton suspects that other species may be able match the cooperative abilities of chimps, elephants and rooks — especially social carnivores that hunt in packs.

The largest study to date of genetic variation among chimpanzees has found that the traditional, geography - based sorting of chimps into three populations — western, central and eastern — is underpinned by significant genetic differences, two to three times greater than the variation between the most different human populations.

This YouTube video of a chimp abusing a frog is a fairly spectacular example.

«Ardi lived at least 2 1/2 or 3 million years after the split of chimps and humans,» Begun says.

Before the 1930s, bonobos were considered a subspecies of chimp as well and were called pygmy chimps, but researchers decided based on physical differences that these smaller apes are distinctive enough to warrant separate species status.

Hudson notes that noninvasive, behavioral studies of chimp behavior are currently allowed, but as for brain imaging: «That's not going to happen,» she says.

The federal government provides a portion of Chimp Haven's support, but the sanctuary also needs a significant amount of private money if it is to care for all of the chimpanzees waiting to leave the labs for a humane retirement home.

But new research, published online today in the Proceedings of the National Academy of Sciences, suggests that genetics dictate the organization of a chimp's brain much more rigidly than in humans, allowing the environment to play a larger role in our neural development.

Cantwell, whose co-sponsors were Susan Collins (R — ME) and Bernie Sanders (I — VT), argued that the vast majority of these chimps were «simply wasting away in these facilities» because they were «poor research models for human illness, and they have been of limited use in the study of human disease.»

«The animals include Hercules and Leo, which have been the subject of an intense legal battle over the legal rights of chimps.»

The remaining 50 chimps will not be bred in captivity, so over time the number of chimps available for research will dwindle.

The challenge now will be trying to find money to pay for the maintenance and care of the chimps slated for retirement.

One of our biggest programs in Africa is working to improve the lives of people in 52 villages around Gombe National Park and spread out through the rest of the chimp habitat in Tanzania — and we have similar programs in Uganda, DRC [Democratic Republic of the Congo], the Republic of [the] Congo, Senegal and Burundi.

Also, I am curious about what the macronutrient ratio of Chimp Milk is?

The ironic image of chimps charging forwards in men's uniforms, for example, raises questions relating violence by the police.

One question is how NIH will pay for the costs of chimp retirement.

Not only do the complex calls of chimps contain specific information about what they are observing, but their visual cues can add additional information.

For their analysis, genomicists Kelly Frazer, David Cox, and their colleagues at Perlegen Sciences in Mountain View, California, assessed the resemblance between 27 million bases of the chimp's chromosome 22 and the equivalent human chromosome, 21, using chips densely packed with small pieces of DNA.

It takes more story approach and really delves into the lives of these Chimps.

De Waal has found that short - term predictions of aggressive behavior based on the subjective evaluation of the personality, mood and frustrations of the chimps were much more reliable than estimations based on objective categorizations and explicit rules (that is, on quantitative and sensory - based criteria).

The owner of the chimp suggested that he was only protecting her!

By analysing 599 samples of chimp droppings (P. T. troglodytes are a highly endangered and thus protected species that can not be killed or captured for testing), the researchers were able to obtain 34 specimens that reacted to a standard HIV DNA test, 12 of which gave results that were virtually indistinguishable from the reactions created by human HIV.

In fact, they perform rather well on a task used to test the mental faculties of chimps, dolphins and parrots.

Somewhere between 6 and 8 million years ago, our ancestors split from the line that would become today's two species of chimps.

Sarah Brosnan, a primate behaviourist at Georgia State University in Atlanta, and her colleagues trained captive chimps to exchange tokens for a food reward, then tested how same - sex pairs of chimps reacted to various levels of reward.

In previous experiments, other groups of chimps showed no sensitivity towards unfairness directed at others.

Whenever I see that, I think of the chimp's fear response.

This kind of ritualized behavior is typical of all chimp populations.

«They're missing something,» Walker says of the chimps.

«I'm convinced they really do care about the welfare of those chimps.»

«For the first time, there are more chimpanzees in sanctuaries than there are in labs,» says Stephen Ross, director of the Lester E. Fisher Center for the Study and Conservation of Apes at the Lincoln Park Zoo in Chicago, Illinois, and board chair of Chimp Haven in Keithville, Louisiana, the only sanctuary authorized to take government - owned chimps.

Editor's note: We covered this problem in an award - winning article called «An Embarrassment of Chimps,» published in the May 2002 issue.