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The earliest fossils clearly in the human but not the chimpanzee lineage appear between about 4.5 to 4 million years ago, with Australopithecus anamensis. Few fossil specimens on the "chimpanzee-side" of the split have been found; the first fossil chimpanzee, dating between 545 and 284 kyr (thousand years, radiometric ), was discovered in Kenya ...
The ID between humans and gorillas was determined to be 1.09, that between humans and chimpanzees was determined as 1.14. However the distance to six different Old World monkeys was on average 2.46, indicating that the African apes are more closely related to humans than to monkeys.
In the 1970s, a performing chimpanzee named Oliver was popularized as a possible "mutant" or even a human–chimpanzee hybrid. [25] Claims that Oliver had 47 chromosomes—midpoint between the normal 46 for humans and 48 for chimpanzees—were disproven after an examination of his genetic material at the University of Chicago in 1996. [26]
In those genes, there were similarities to human genes. ... To put that 60% in perspective, chimpanzees, our closest living evolutionary relative, share 96% of the same genes with humans.
For example, neutral human DNA sequences are approximately 1.2% divergent (based on substitutions) from those of their nearest genetic relative, the chimpanzee, 1.6% from gorillas, and 6.6% from baboons. [10] [11] Genetic sequence evidence thus allows inference and quantification of genetic relatedness between humans and other apes.
The lineages of chimpanzees [dubious – discuss] and humans separated in a process of speciation between roughly five to twelve million years ago, [25] making them humanity's closest living relative. [26] Research by Mary-Claire King in 1973 found 99% identical DNA between human beings and chimpanzees. [27]
The Hominidae (/ h ɒ ˈ m ɪ n ɪ d iː /), whose members are known as the great apes [note 1] or hominids (/ ˈ h ɒ m ɪ n ɪ d z /), are a taxonomic family of primates that includes eight extant species in four genera: Pongo (the Bornean, Sumatran and Tapanuli orangutan); Gorilla (the eastern and western gorilla); Pan (the chimpanzee and the bonobo); and Homo, of which only modern humans ...
The human and chimpanzee evolutionary lineages split about 6.9 million to 9 million years ago, according to research published in June. Studying chimpanzee behavior may offer insight into our own ...