Study moves chimp-human split to 4 million years ago
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Chimpanzees and humans split from a common ancestor just 4 million years ago -- a much shorter time than current estimates of 5 million to 7 million years ago, according to a study published on Friday.
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A battle won by human ancestors against a virus that infected chimpanzees and other primates millions of years ago may have left people today more vulnerable to the AIDS virus, scientists said on Thursday.
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New research suggests that developing the ability to run &#151; long thought to be a byproduct of walking for early man &#151; was actually an instrumental step in the evolution of people from ape-like creatures into what we know today as humans.
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Australian scientists have found a new species of hobbit-sized humans who lived about 18,000 years ago on an Indonesian island. The discovery adds another piece to the complex puzzle of human evolution.
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Ethiopian scientists said on Tuesday they have discovered hominid fossil fragments dating from between 3.5 million and 3.8 million years ago in what could fill a crucial gap in the understanding of human evolution.
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Some head lice infesting people today were probably spread to us thousands of years ago by an extinct species of early human, a genetics study reveals.
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The fossil gives us a missing link, not directly between humans and an apelike ancestor, but between great apes and lesser apes such as gibbons.
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Chimpanzees may have been using stone "hammers" as long as 4,300 years ago. An international research team, led by archaeologist Julio Mercader of the University of Calgary, Canada, said Monday it had uncovered the hammers, dated to that time, in the West African country Ivory Coast. It would be the earliest known use of tools by chimpanzees.
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Scientists in Spain have discovered fossils of an ape species from about 13 million years ago that they think may have been the last common ancestor of all living great apes, including humans.
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SALT LAKE CITY Nov 18, 2004 - New research suggests that developing the ability to run long thought to be a byproduct of walking for early man was actually an instrumental step in the evolution of people from ape-like creatures into what we know today
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Scientists in Australia have found a new species of hobbit-sized humans who lived about 18,000 years ago on an Indonesian island in a discovery that adds another piece to the complex puzzle of human evolution.
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In the continuing debate over the origin of the extinct âlittle peopleâ of Indonesia, a team of scientists says it has found evidence that these people were members of a distinct species.
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MODERN human beings may have wiped out two species of our closest relatives 25,000 years ago, possibly deliberately. The new research, by scientists at the University of Utah, raises the possibility that we
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A chimp-sized human ancestor walked upright 6 million years ago, far earlier than anyone had been able to show before, researchers reported on Thursday.
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In Spain scientists have discovered 13-million-year-old fossils of a new species of ape. The species may have been the last common ancestor of humans and all great apes living today. Includes photo gallery.
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A new DNA analysis indicates that the parasites  accompanied their human hosts in the original peopling of the Americas, probably as early as 15,000 years ago.
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Fossils of an ape species from about 13 million years ago may have been the last common ancestor of great apes, including humans.