Chimpanzee Current Events | Chimpanzee News
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The Chimpanzee Stone Age
Researchers have found evidence that chimpanzees from West Africa were cracking nuts with stone tools before the advent of agriculture, thousands of years ago. view more (2007-02-14)
Use of stone hammers sheds light on geographic patterns of chimpanzee tool use
In a finding that challenges a long-held belief regarding the cultural spread of tool use among chimpanzees, researchers report that chimpanzees in the Ebo forest, Cameroon, use stone hammers to crack open hard-shelled nuts to access the nutrient-rich seeds. view more (2006-08-22)
Spread of endogenous retrovirus K is similar in the DNA of humans and rhesus monkeys
According to paleontologic and molecular studies, the chimpanzee (Pan troglodytes) is the closer relative to the humans (Homo sapiens) and that both lineages had a common ancestor at 5 to 7 million years ago. view more (2007-10-10)
DNA chunks, chimps and humans
Researchers have carried out the largest study of differences between human and chimpanzee genomes, identifying regions that have been duplicated or lost during evolution of the two lineages. view more (2008-11-06)
Male chimpanzees prefer mating with old females
Researchers studying chimpanzee mating preferences have found that although male chimpanzees prefer some females over others, they prefer older, not younger, females as mates. view more (2006-11-21)
Chimpanzees with real personality
Just as the issue brews up again of whether and when we should grant our closest cousins - the chimpanzees - 'human' rights, there is now quantifiable proof that individual chimpanzees have different personalities. What's more, the most important underlying dimensions of chimpanzee personality emerge as very similar to some of the 'Big Five'... view more... (1999-03-26)
In a last 'stronghold' for endangered chimpanzees, survey finds drastic decline
In a population survey of West African chimpanzees living in Côte d'Ivoire, researchers estimate that this endangered subspecies has dropped in numbers by a whopping 90 percent since the last survey was conducted 18 years ago. view more (2008-10-14)
Chimpanzees are social conformists
Research being published by Nature suggests that humans are not alone in wanting to conform and be like their neighbours but that chimpanzees also have an innate desire to be like everyone else. view more (2005-08-22)
Chimpanzee cooperators
In the animal kingdom cooperation is crucial for survival. Predators hunt in prides and prey band together to protect themselves. Yet no other creature cooperates as successfully as we do. view more (2006-03-03)
Discovery of the origin of the Simian Immunodeficiency Virus (SIV) in the chimpanzee
The origin of HIV-1 (human immunodeficiency virus-1), responsible for the global Aids pandemic, has been a live issue in the scientific community for many years. It is now recognized that HIV-1 in the human population results from cross-species transmission of SIVcpz, from chimpanzees (Pan troglodytes troglodytes) to humans, most likely through... view more... (2003-06-16)
Infant play drives chimpanzee respiratory disease cycles
The signature boom-bust cycling of childhood respiratory diseases was long attributed to environmental cycling. view more (2008-06-18)
Complexity constrains evolution of human brain genes
Despite the explosive growth in size and complexity of the human brain, the pace of evolutionary change among the thousands of genes expressed in brain tissue has actually slowed since the split, millions of years ago, between human and chimpanzee. view more (2006-12-26)
Referential-gesture communication in wild chimpanzees (Pan troglodytes)
Humans commonly use referential gestures that direct the attention of recipients to particular aspects of the environment. view more (2006-03-21)
Gene study shows three distinct groups of chimpanzees
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. view more (2007-04-23)
Wild gorillas carriers of a SIV virus close to the AIDS virus
In 2005, 40.3 million people in the world, including 25.8 million in Sub-Saharan Africa, were living with HIV. The question of the origin of HIV-1, responsible for the AIDS pandemic, has been stimulating the scientific community for many years. view more (2006-11-14)
Chimpanzees help each other on request but not voluntarily
The evolution of altruism has long puzzled researchers and has mainly been explained previously from ultimate perspectives-I will help you now because I expect there to be some long-term benefit to me. view more (2009-10-15)
AIDS discovered in wild chimpanzees
Although the AIDS virus (HIV-1) entered the human population through chimpanzees, scientists have long believed that chimpanzees don't develop AIDS. view more (2009-07-23)
Nurtured chimps rake it in
Human interaction and stimulation enhance chimpanzees' cognitive abilities, according to new research from the Chimpanzee Cognition Center at The Ohio State University. view more (2007-06-14)
Comparing chimp and human DNA
Scientists look to the chimpanzee genome to better understand what is uniquely human about our own. One goal is to find DNA elements that show evidence of rapid evolution in the human lineage. view more (2006-10-13)
New collaborative research reveals chimpanzees can sustain multiple-tradition cultures
Scientists have long wondered if local animal cultures exist, and now, based on findings by researchers at the Yerkes National Primate Research Center at Emory University, the University of Texas and St. Andrews University, Scotland, they have their answer: Yes. view more (2007-06-08)
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