Tag: "ape" at biology news

Comparing primate genomes offers insight into human evolution

...number in specific primate lineages. All the great ape species showed more increases than decreases in gene copy numbers, but humans showed the highest number of genes with increased copy numbers, at 134, and many of these duplicated human genes are implicated in brain structure and function. Because som...

Growth study of wild chimpanzees challenges assumptions about early humans

...cussion of hominid origins and the transition from ape ancestors to hominids. The eruption of teeth mark other life events, such as completion of brain growth (90 to 95 percent of brain growth is complete when the first permanent molar erupts) and life-history stages like infancy, juvenile, and adulthoo...

Primates trade smell for sight

...it appears, deteriorated independently both in the ape and Old World monkey lineage as well as in the howler monkey lineage. Although Old World monkeys, apes, and the howler monkeys do not share an exclusive common ancestor, they do share another sensory feature: trichromatic color vision. In tric...

Louis Leakey Centennial Tribute

...ndation. "Dramatic fossil finds, new insights into ape behavior, and DNA analysis are transforming our understanding of what it means to be human. I think Louis Leakey would be just as interested in the questions that remain as those that have been answered." The Field Museum has long been an internatio...

Countries find common ground to protect world's rarest gorilla

...a and identify conservation priorities. This great ape was only recently designated as a distinct subspecies of gorilla through genetic studies conducted by WCS researcher Dr. John Oates and others. The group of conservation stakeholders from both countries under their respective government protected are...

Wild ape population undergoing 'catastrophic' decline

...t in the last part of the world to have widespread ape habitats, according to the study, which was publis...h, because they assumed that the best indicator of ape populations is the amount of intact forestland, which is relatively abundant in Western Equatorial A...

Catastrophic decline of Africa's apes, Nature says

...More support is also required to fight the wave of ape poaching that has followed the intrusion of mechan...to once remote areas. Scientists believe the great ape decline is not restricted to Gabon. Neighboring Republic of Congo and other countries in the region...

Archaeological journey reveals new information on chimpanzee stone tool technology

... anvils. In addition to the possibility of tracing ape culture back in time, the scientists also believe the research will open up new ways of interpreting some early hominid, or human, sites. "Some of the stone by-products of chimpanzee nut-cracking are similar to what we see left behind by some of our ...

First primate archaeological dig uncovers new tool development links

... tracing the development of at least one aspect of ape culture through time, said Mercader, a visiting assistant professor at GWU. Melissa Panger, a GWU post-doctoral research fellow who receives support through NSFs Integrative Graduate education and Research Traineeship (IGERT) program, said the disco...

Human and fly studies tally good and bad mutations, stress ongoing role of natural selection

...on within the human genome and divergence from our ape ancestors, the researchers determined that about 35 percent of the accumulated changes were "good." "The proportion is shockingly high," said Wu, "for someone like myself who grew up in the neutralist era." It means one advantageous substitution ha...

Scientists look to Europe as evolutionary seat

...seum of Stuttgart discuss the earliest-known great ape fossil, broadly ancestral to all living great apes...t Africa," Begun says. "It suggests that the great ape and human lineage first appeared in Eurasia and not Africa." In the December 2001 paper, Begun and ...

Homosexual behavior discovered among wild orangutans

...s. Throughout the wild, orangutans the only great ape native to Asia, besides man are vanishing due to habitat loss, and poaching for the pet trade. Indonesia in particular has been the scene of rampant illegal logging of orangutan habitat, prompting some scientists to predict the species demise in th...

Baboons can think abstractly, in the first study to show that a non-human, non-ape animal shares a central aspect of human intelligence

...rise to apes and then humans. Chimpanzees, in the ape family, already have demonstrated abstract thought. Now, two trained baboons successfully determined that two differently detailed displays were fundamentally the same in their overall design. Figuring this out required analogical (this is to this ...

Organgutan numbers plummeting worldwide; species may vanish in ten years, study says

NEW YORK -- The orangutan - the only great ape found in Asia - may vanish from the wild within a decade, unless illegal logging of its habitat and poaching can be greatly reduced, according to research funded by the Bronx Zoo-based Wildlife Conservation Society (WCS). The study, which appears in ...

We are family: the imperative for a chimpanzee genome project

...you might wonder if the difference between man and ape is all in the head. But chimpanzees are strikingly different from humans in their resistance to devastating diseases, such as AIDS and malaria. For this very reason, Ajit Varki (University of California, San Diego) makes an urgent case to launch a ...

Brookfield Zoo hosts international ape conference

... Brookfield Zoo. In serious danger of extinction, ape populations in Africa and Asia are rapidly decreasing because of habitat destruction from logging, mining, forest fires, hunting for bushmeat, and the illegal pet trade. These issues are of a complex nature, as people must develop more sustainable m...

Chimpanzee subspecies are genetically mixed and more diverse than humans, according to research in 5 November 1999 Science

...opology, from the origin of modern humans to great ape conservation. The findings also support the idea that cultural differences between chimpanzee populations are probably not the result of genetic variation between these groups. Although information about variation in the human genome seems to be acc...

Primate genus sheds light on great ape and human origins, as reported in Science

...lated to that ancestor thanpreviously thought. The ape family tree has dwindled to a few remaining twigs ...ade and old fossils arere-analyzed. The new fossil ape reported in Science prompted itsdiscoverers to take another look at the Kenyapithecus genus, an ...

Yerkes researchers find primate face recognition can be purely visual

...owever, fail to recognize the relationship between ape mothers anddaughters. Like Mother Like Son "Perhaps facial similarities concerning sons, or males in general, are moreimportant for chimpanzees," says Parr. This may relate to the male-centeredsocial system of chimpanzees. It has long been known fro...

Should Great Apes Be Given Legal Rights?

...tep inwhenever they believe a chimp or other great ape is being mistreated, much as wealready use the cou... livethere are reportedly well looked after. Great ape experiments in Britain andAustralia are also a thing of the past. But the law could have an ...

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